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Tuesday, September 25, 2018  
Posted by: Kirsti Carr and Brian Tsuru

Our count started late today, but a kettle of hawks (including several Broad-winged Hawks!) greeted us as we got to the top of the Hill. At the time, with good winds and lifting fog, all seemed like a promising day for migration. Sadly, less than an hour later, our familiar companion, The Fog, returned to the Headlands and swallowed our chances of seeing any more birds. With visibility worsening by the minute, we officially suspended our count early, and are hoping for better Tuesday 1's (and other days) in the future. (A quick disclaimer – though we had a great 40 minutes counting hawks today, the short timing of our count means that our reported Raptors per Hour for the day is quite high…)

Total Sightings: 94
Hours Counted: 0.67
HPH: 140.3
Total Species: 6

Species Counts:
Turkey Vulture: 27
Sharp-shinned Hawk: 17
Cooper's Hawk: 13
Red-shouldered Hawk: 1
Broad-winged Hawk: 14
Red-tailed Hawk: 18

Unidentified...
Accipiter: 3
Falcon: 1
Total unidentified: 4

Data have not been entirely checked — contact Step Wilson at swilson@parksconservancy.org for final results and for permission to use.

Monday, September 24, 2018  
Posted by: Laura Kwasnoski

The Monday I group enjoyed a morning of fog inversion (fog hanging low, sun on top of Hawk Hill) to start the fourth cycle of Hawkwatch! A bunch of Broad-winged Hawks, including a few late afternoon adults, were early visitors to Hawk Hill. The Broad-wings were often joined by Red-shouldered Hawks, Red-tailed Hawks, and Northern Harriers, forming large kettles in front of the Golden Gate Bridge and Slacker Ridge. In addition to Buteos, the Hawkwatchers were frequently following falcons – American Kestrels, Merlins, and a mid-morning Peregrine to be exact. The migrating Sharp-shinned and Cooper's Hawks continued to make appearances throughout the day (including an adult or two). Turkey Vultures and an Osprey capped the species count at 11. What started as a beautiful, sunny day ended at 3pm when the fog rolled back in.

Total Sightings: 413
Hours Counted: 5.5
HPH: 75.09
Total Species: 11

Species Counts:
Turkey Vulture: 75
Osprey: 1
Northern Harrier: 11
Sharp-shinned Hawk: 104
Cooper's Hawk: 48
Red-shouldered Hawk: 10
Broad-winged Hawk: 36
Red-tailed Hawk: 88
American Kestrel: 11
Merlin: 3
Peregrine Falcon: 1

Unidentified...
Accipiter: 17
Buteo: 5
Falcon: 2
Raptor: 1
Total unidentified: 25

Data have not been entirely checked — contact Step Wilson at swilson@parksconservancy.org for final results and for permission to use.

Sunday, September 23, 2018  
Posted by: Olivia Wang and Brian Tsuru

A very busy day at Hawk Hill today! Though we didn't have high hopes this morning looking at all of the fog, conditions improved throughout the day and we wound up recording our greatest number of raptors yet this season (with an average of over 115 raptors per hour!). In addition to the many Accipiters we saw in flight today we were fortunate to see many Broad-winged Hawks from the Hill, including some adults, as well as a good number of Merlins and our first Bald Eagle of the season! Hoping that the skies stay clear for future Hawkwatch teams.

Total Sightings: 634
Hours Counted: 5.5
HPH: 115.27
Total Species: 13

Species Counts:
Turkey Vulture: 92
Osprey: 4
White-tailed Kite: 1
Bald Eagle: 1
Northern Harrier: 9
Sharp-shinned Hawk: 173
Cooper's Hawk: 53
Red-shouldered Hawk: 4
Broad-winged Hawk: 48
Red-tailed Hawk: 147
American Kestrel: 9
Merlin: 10
Peregrine Falcon: 1

Unidentified...
Accipiter: 70
Buteo: 2
Falcon: 3
Raptor: 7
Total unidentified: 82

Data have not been entirely checked — contact Step Wilson at swilson@parksconservancy.org for final results and for permission to use.

Saturday, September 22, 2018  
Posted by: Laura Kwasnoski Brian Tsuru and Olivia Wang

An uncooperative layer of fog prevented Saturday 2 from getting up the hill today, but the team still managed to get some great Hawkwatching done! During our hike around the lagoon and nearby trails, we saw 7 species of raptors. Osprey, Northern Harriers, American Kestrels, and Turkey Vultures all made appearances. We also saw Red-tails and Sharp-shinned and Cooper's Hawks hunting in the fields. Hopefully the fog lifts soon and the team can get back to proper hawk counting next time!

Total Sightings: 0
Hours Counted: 0
HPH: 0
Total Species: 0

Data have not been entirely checked — contact Step Wilson at swilson@parksconservancy.org for final results and for permission to use.

Friday, September 21, 2018  
Posted by: Kirsti Carr

The first hour and 25 minutes of our day were beautiful; a strong northwest wind was blowing, the sun was shining, and Accipiters were flying left and right. Fog loomed over the ocean, but we continued counting raptors and watching Sharp-shinned Hawks dart about in the wind until it suddenly swept over the entire hill and left us with no visibility. We packed up our spotting scopes and binoculars and retreated down to Conzelman Road to attempt to wait out the fog, and yet it did not lift. Although we had to leave the hill early, we were able to get in one productive hour. Hopefully the gloomy weather will clear for tomorrow's team!

Total Sightings: 71
Hours Counted: 1.25
HPH: 56.8
Total Species: 5

Species Counts:
Turkey Vulture: 13
Sharp-shinned Hawk: 28
Cooper's Hawk: 6
Red-tailed Hawk: 19
American Kestrel: 1

Unidentified...
Accipiter: 2
Raptor: 2
Total unidentified: 4

Data have not been entirely checked — contact Step Wilson at swilson@parksconservancy.org for final results and for permission to use.

Thursday, September 20, 2018  
Posted by: Erin Barry and Olivia Wang

Thursday 2 faced uncharacteristically warm temperatures up on Hawk Hill today, but it was worth it for all the great views of raptors we had. There were close ups of both adult and juvenile Ferruginous Hawks, plenty of Sharp-shinned and Cooper's Hawks, and kettles of Turkey Vultures, Red-shouldered Hawks, Red-tailed Hawks, and Broad-winged Hawks. At noon, we got a fantastic look at an adult Golden Eagle flying right below the hill! Despite the heat, Hawkwatch had a great full day on the hill.

Total Sightings: 490
Hours Counted: 6
HPH: 81.67
Total Species: 12

Species Counts:
Turkey Vulture: 72
Osprey: 2
Northern Harrier: 6
Sharp-shinned Hawk: 113
Cooper's Hawk: 76
Red-shouldered Hawk: 5
Broad-winged Hawk: 5
Red-tailed Hawk: 177
Ferruginous Hawk: 5
Golden Eagle: 1
American Kestrel: 6
Merlin: 4

Unidentified...
Accipiter: 12
Buteo: 2
Falcon: 1
Raptor: 3
Total unidentified: 18

Data have not been entirely checked — contact Step Wilson at swilson@parksconservancy.org for final results and for permission to use.

Wednesday, September 19, 2018  
Posted by: Kirsti Carr Laura Kwasnoski and Olivia Wang

Wednesday 2 was a busy day for hawk counting! The morning started with a slew of sharpie sightings – which continued throughout the day – as well as our usual Red-tails, Turkey Vultures, Northern Harriers and many Osprey. The species count began to climb late in the morning as Red-shouldered Hawks, American Kestrels, Broad-winged Hawks, and Merlins appeared around Hawk Hill. Mid-afternoon, a adult Ferruginous Hawk appeared amongst a group of Red-tails before flying towards the Golden Gate Bridge. A late in the day Golden Eagle made a quick appearance before disappearing behind the hill, unseen thereafter. A wonderful, sunny 14-species day!

Total Sightings: 545
Hours Counted: 5.67
HPH: 96.12
Total Species: 14

Species Counts:
Turkey Vulture: 94
Osprey: 7
White-tailed Kite: 1
Northern Harrier: 10
Sharp-shinned Hawk: 95
Cooper's Hawk: 42
Red-shouldered Hawk: 9
Broad-winged Hawk: 18
Red-tailed Hawk: 230
Ferruginous Hawk: 1
Golden Eagle: 1
American Kestrel: 6
Merlin: 5
Peregrine Falcon: 1

Unidentified...
Accipiter: 21
Raptor: 4
Total unidentified: 25

Data have not been entirely checked — contact Step Wilson at swilson@parksconservancy.org for final results and for permission to use.

Tuesday, September 18, 2018  
Posted by: Erin Barry and Brian Tsuru

Started out as a foggy day, but the morning was filled with sightings of sea lions being released, porpoises, whales and a look at a rare Eastern Yellow Wagtail. The fog started to lift and Tuesday 2 was finally able to make it up to Hawk Hill where we were able to see an adult Red-shouldered Hawk. While we weren't up for very long today, we have high hopes that we have reached our fog quota for the season and will be expecting many clear days ahead.

Total Sightings: 64
Hours Counted: 2.25
HPH: 28.44
Total Species: 6

Species Counts:
Turkey Vulture: 18
Sharp-shinned Hawk: 12
Cooper's Hawk: 2
Red-shouldered Hawk: 1
Red-tailed Hawk: 22
American Kestrel: 1

Unidentified...
Accipiter: 4
Raptor: 4
Total unidentified: 8

Data have not been entirely checked — contact Step Wilson at swilson@parksconservancy.org for final results and for permission to use.

Monday, September 17, 2018  
Posted by: Laura Kwasnoski

The Monday II team was greeted by a wall of fog upon arrival in the Headlands. Not to be deterred, the group set out to bird along the Miwok and Bobcat Trails and was rewarded with looks at 2 sleepy Great-horned Owls, a female American Kestrel mid-hunt, and an adult Red-tailed Hawk, which was promptly harassed by a male American Kestrel. Before leaving, the Hawkwatch team encountered a crowd of enthusiastic birders by Rodeo Lagoon. These birders pointed out the exact location of an Eastern Yellow Wagtail, which appeared in the distance a few minutes after the team arrived.

E-bird report of Eastern Yellow Wagtail (by William Legge): https://ebird.org/view/checklist/S48573259


Total Sightings: 0
Hours Counted: 0
HPH: 0
Total Species: 0

Data have not been entirely checked — contact Step Wilson at swilson@parksconservancy.org for final results and for permission to use.

Sunday, September 16, 2018  
Posted by: Olivia Wang and Brian Tsuru

After getting fogged out the past two Sunday 1's, we broke the record for the season so far with over 500 raptors! Though at times it seemed as if the fog would win, we had mostly clear skies throughout the day and were able to spot Red-tailed Hawks, Red-shouldered Hawks, and lots of Accipiters. Our patience with the fog was rewarded with two late afternoon Ferruginous Hawks, with one coming especially close to the Hill. The day wrapped up with some adult Red-tails hunting directly over us, making us feel less like the Hawkwatchers and more like the Hawkwatch-ees! It was great to finally get up on the Hill with Sunday 1 for the best day yet of the season.

Total Sightings: 529
Hours Counted: 6
HPH: 88.17
Total Species: 11

Species Counts:
Turkey Vulture: 137
Osprey: 3
Northern Harrier: 7
Sharp-shinned Hawk: 92
Cooper's Hawk: 50
Red-shouldered Hawk: 12
Broad-winged Hawk: 2
Red-tailed Hawk: 170
Ferruginous Hawk: 2
American Kestrel: 4
Peregrine Falcon: 1

Unidentified...
Accipiter: 35
Buteo: 12
Raptor: 2
Total unidentified: 49

Data have not been entirely checked — contact Step Wilson at swilson@parksconservancy.org for final results and for permission to use.

Saturday, September 15, 2018  
Posted by: Brian Tsuru and Olivia Wang

Fog drifted in and out of the Headlands today, making for some frustratingly short views of raptors. The team was still able to get some good looks at Red-tailed, Sharp-shinned, and Cooper's Hawks, with some flying right over the hill in front of us. There was also a great sighting of a Merlin that flew low overhead before disappearing into the clouds. Later in the day, we had a clear view of some Broad-winged Hawks and an Osprey over the water. A Humpback Whale was also seen from the hill, and the team had fun watching it smack the water with its fluke before diving down and swimming away.

Total Sightings: 253
Hours Counted: 5.25
HPH: 48.19
Total Species: 9

Species Counts:
Turkey Vulture: 50
Osprey: 1
Sharp-shinned Hawk: 52
Cooper's Hawk: 18
Broad-winged Hawk: 4
Red-tailed Hawk: 97
American Kestrel: 1
Merlin: 1
Peregrine Falcon: 2

Unidentified...
Accipiter: 12
Buteo: 5
Falcon: 1
Raptor: 9
Total unidentified: 27

Data have not been entirely checked — contact Step Wilson at swilson@parksconservancy.org for final results and for permission to use.

Friday, September 14, 2018  
Posted by: Kirsti Carr and Erin Barry

Although there was a fair amount of fog around Hawk Hill today, our team was able to count for a few hours, and we saw plenty of Accipiters! We saw more Sharp-shinned Hawks than Cooper's Hawks today. We also were delighted to see a couple Northern Harriers rise through the fog. As we left the hill, a juvenile Sharp-shinned flew low over all our heads and gave us a great look at it, almost as if it were saying goodbye. Until next time, sweet sharpies!

Total Sightings: 190
Hours Counted: 3.75
HPH: 50.67
Total Species: 7

Species Counts:
Turkey Vulture: 60
Northern Harrier: 2
Sharp-shinned Hawk: 34
Cooper's Hawk: 13
Red-shouldered Hawk: 1
Red-tailed Hawk: 59
American Kestrel: 1

Unidentified...
Accipiter: 17
Buteo: 1
Raptor: 2
Total unidentified: 20

Data have not been entirely checked — contact Step Wilson at swilson@parksconservancy.org for final results and for permission to use.

Thursday, September 13, 2018  
Posted by: Olivia Wang Brian Tsuru and Kirsti Carr

Thursday 1 had a great time comparing Accipiters throughout the day. There was a steady stream of both Cooper's and Sharp-shinned Hawks, allowing the team to compare and contrast the two and hone our ID skills. Other fun sightings included Broad-wingeds, Red-shouldereds, and a juvenile White-tailed Kite… and a Ferruginous Hawk! We also were able to see a juvenile Peregrine Falcon hunting in the hills. Overall, a *golden* (like the juvenile eagle we saw!) day for Thursday 1!

Total Sightings: 478
Hours Counted: 6
HPH: 79.67
Total Species: 12

Species Counts:
Turkey Vulture: 105
White-tailed Kite: 1
Northern Harrier: 1
Sharp-shinned Hawk: 77
Cooper's Hawk: 40
Red-shouldered Hawk: 8
Broad-winged Hawk: 4
Red-tailed Hawk: 204
Ferruginous Hawk: 1
Golden Eagle: 1
American Kestrel: 6
Peregrine Falcon: 2

Unidentified...
Accipiter: 16
Buteo: 2
Raptor: 10
Total unidentified: 28

Data have not been entirely checked — contact Step Wilson at swilson@parksconservancy.org for final results and for permission to use.

Wednesday, September 12, 2018  
Posted by: Erin Barry and Brian Tsuru and Laura Kwasnoski

Falcons, falcons, falcons! The Wednesday 1 team was excited to observe falcons of all four species: American Kestrel, Merlin, Prairie Falcon and Peregrine Falcon. In addition, the group enjoyed good looks at migrating Cooper's Hawk and Sharp-shinned Hawks as well as a solo Broad-winged Hawk, which flew directly over the viewing platform on Hawk Hill. A great 12 species day!

Total Sightings: 345
Hours Counted: 6
HPH: 57.5
Total Species: 12

Species Counts:
Turkey Vulture: 151
Osprey: 4
White-tailed Kite: 1
Sharp-shinned Hawk: 18
Cooper's Hawk: 27
Red-shouldered Hawk: 2
Broad-winged Hawk: 1
Red-tailed Hawk: 130
American Kestrel: 4
Merlin: 1
Peregrine Falcon: 2
Prairie Falcon: 1

Unidentified...
Accipiter: 1
Raptor: 2
Total unidentified: 3

Data have not been entirely checked — contact Step Wilson at swilson@parksconservancy.org for final results and for permission to use.

Tuesday, September 11, 2018  
Posted by: Brian Tsuru and Kirsti Carr

Another sunny day for Hawkwatch! Tuesday 1 has finally made it onto the Hill. We got a great look at a juvenile Swainson's Hawk today, as well as a couple distant Broad-winged Hawks and a good number of American Kestrels. Our team also got lots of practice differentiating between Sharp-shinned and Cooper's Hawks today, too. Looking forward to putting our new knowledge to use very soon!

Total Sightings: 396
Hours Counted: 6
HPH: 66
Total Species: 11

Species Counts:
Turkey Vulture: 90
Osprey: 3
Northern Harrier: 2
Sharp-shinned Hawk: 28
Cooper's Hawk: 33
Red-shouldered Hawk: 15
Broad-winged Hawk: 2
Swainson's Hawk: 1
Red-tailed Hawk: 203
American Kestrel: 11
Peregrine Falcon: 2

Unidentified...
Accipiter: 4
Buteo: 2
Total unidentified: 6

Data have not been entirely checked — contact Step Wilson at swilson@parksconservancy.org for final results and for permission to use.

Monday, September 10, 2018  
Posted by: Laura Kwasnoski

Starting the third (sunny) cycle of Hawkwatch, Monday I team had an exciting 15-species day on Hawk Hill! The count began with many of our often-seen species like Red-tailed Hawks and Turkey Vultures. However, as the day continued, we began to see more diversity and greater numbers. Sharp-shinned Hawks and Cooper's Hawks rode along the Slacker ridgeline from noon onwards. A sub-adult Golden Eagle flew around Hawk Hill toward San Francisco, giving the team time to look at feather molt and determine the age of the bird. Northern Harriers flew in rocking dihedrals down in the valleys around the counting platforms. By the end of the day, the team had also welcomed three new species to this seasons' count: a distant dark morph Swainson's Hawk, a fast-moving Merlin, and a soaring adult Ferruginous Hawk.

Total Sightings: 309
Hours Counted: 6
HPH: 51.5
Total Species: 15

Species Counts:
Turkey Vulture: 100
Osprey: 2
White-tailed Kite: 3
Northern Harrier: 6
Sharp-shinned Hawk: 12
Cooper's Hawk: 17
Red-shouldered Hawk: 3
Broad-winged Hawk: 1
Swainson's Hawk: 1
Red-tailed Hawk: 146
Ferruginous Hawk: 1
Golden Eagle: 1
American Kestrel: 4
Merlin: 1
Peregrine Falcon: 4

Unidentified...
Accipiter: 4
Falcon: 2
Raptor: 1
Total unidentified: 7

Data have not been entirely checked — contact Step Wilson at swilson@parksconservancy.org for final results and for permission to use.

Sunday, September 09, 2018  
Posted by: Brian Tsuru and Olivia Wang

Sunday 2 had a great start to the day, with an early view of a juvenile Peregrine hanging around the hill. The rest of the day was just as rewarding, with good looks at White-tailed Kites, juvenile Red-shouldered Hawks, and our first Broad-winged Hawks of the season! There was even a Golden Eagle spotted far off in the distance. Though it slowed down later in the day, Sunday 2 is happy to be the first team to hit double digits for number of species! Looking forward to more days like this.

Total Sightings: 438
Hours Counted: 6
HPH: 73
Total Species: 12

Species Counts:
Turkey Vulture: 145
Osprey: 1
White-tailed Kite: 2
Northern Harrier: 4
Sharp-shinned Hawk: 3
Cooper's Hawk: 21
Red-shouldered Hawk: 7
Broad-winged Hawk: 3
Red-tailed Hawk: 219
Golden Eagle: 1
American Kestrel: 7
Peregrine Falcon: 4

Unidentified...
Accipiter: 13
Buteo: 4
Raptor: 4
Total unidentified: 21

Data have not been entirely checked — contact Step Wilson at swilson@parksconservancy.org for final results and for permission to use.

Saturday, September 08, 2018  
Posted by: Laura Kwasnoski Brian Tsuru and Olivia Wang

A beautiful day for Saturday 2, and the best for Hawkwatch in a while. The good weather brought out lots of hawks for us to see – in addition to the regular Red-tail Hawks and Cooper's Hawks, we got a look at a Northern Harrier, an Osprey, and three beautiful White-tailed Kites. We also were lucky enough to see a Red-shouldered Hawk at today's Raptor Release (which accompany the noon Hawk Talks every weekend in September and October!). We also got to witness the launching of System 001 with The Ocean Cleanup Project, passing under the bridge and past Hawk Hill on its way to start cleaning up the Great Pacific Garbage Patch. All told, an enjoyable day in the sun (with a nice breeze at the end) for Saturday 2!

Total Sightings: 387
Hours Counted: 5.92
HPH: 65.37
Total Species: 9

Species Counts:
Turkey Vulture: 129
Osprey: 1
White-tailed Kite: 3
Northern Harrier: 2
Cooper's Hawk: 18
Red-shouldered Hawk: 3
Red-tailed Hawk: 213
American Kestrel: 10
Peregrine Falcon: 1

Unidentified...
Accipiter: 3
Buteo: 1
Raptor: 3
Total unidentified: 7

Data have not been entirely checked — contact Step Wilson at swilson@parksconservancy.org for final results and for permission to use.

Friday, September 07, 2018  
Posted by: Kirsti Carr

Today was a brief but successful day for Friday 2! Before we ventured up to Hawk Hill we saw a pod of at least 10 bottlenose dolphins from Rodeo Beach, and spent some time watching non-raptorial birds at the lagoon. Although we did not ever fully shake the fog, we had an hour on the hill with a lot of Red-tailed Hawk activity and even got a look at a White-tailed Kite before the fog blew back in and covered our views. Here's to hoping the fog will finally clear for our weekend teams!

Total Sightings: 86
Hours Counted: 1
HPH: 86
Total Species: 5

Species Counts:
Turkey Vulture: 10
White-tailed Kite: 1
Cooper's Hawk: 1
Red-tailed Hawk: 70
American Kestrel: 2

Unidentified...
Accipiter: 2
Total unidentified: 2

Data have not been entirely checked — contact Step Wilson at swilson@parksconservancy.org for final results and for permission to use.

Thursday, September 06, 2018  
Posted by: Erin Barry and Olivia Wang

It was another foggy day, but we were able to watch a Sea Lion get released by the Marine Mammal Center on the beach near our office building! We then had a nice stroll around the lagoon. We saw Wilson's Warblers, American Goldfinches and some Anna's Hummingbirds. There were also a couple of juvenile Black-crowned Night-Herons and Great Blue Herons hanging out in a tree together, and the team had a fun time comparing and contrasting the two species. Despite not getting up to Hawk Hill, Thursday 2 still had a great time bird watching today!

Total Sightings: 0
Hours Counted: 0
HPH: 0
Total Species: 0

Data have not been entirely checked — contact Step Wilson at swilson@parksconservancy.org for final results and for permission to use.

Wednesday, September 05, 2018  
Posted by: Kirsti Carr Laura Kwasnoski and Olivia Wang

Wednesday 2 faced a formidable amount of fog this morning and was unable to make it up to Hawk Hill. However, the team still had a good time birding on the beach and around the lagoon, seeing Western Sandpipers, a Pectoral Sandpiper, Marbled Godwits, and Red-necked Phalaropes. We also saw some Wilson's Warblers, Pacific-slope Flycatchers, Rough-winged Swallows, and Golden-crowned Sparrows. The team also got a great look at a low flying tagged Turkey Vulture, #372! Overall, the team had a fun time hanging out and are hoping for clear skies for next Wednesday 2.

Total Sightings: 0
Hours Counted: 0
HPH: 0
Total Species: 0

Data have not been entirely checked — contact Step Wilson at swilson@parksconservancy.org for final results and for permission to use.

Tuesday, September 04, 2018  
Posted by: Erin Barry and Brian Tsuru

For our second outing in a row, Tuesday 2 was thwarted by an excess of fog above Hawk Hill. Despite this continued adversity, we birded around the Headlands in the hope that the fog would later lift (sadly, it did not). We did see a few Townsend's Warblers to brighten our day, however, and got some looks at intermediate- and dark-morph Red-tailed Hawks as well. Hoping the fog comes to an end soon, since we want to see more raptors - as well as our shadows.

Total Sightings: 0
Hours Counted: 0
HPH: 0
Total Species: 0

Data have not been entirely checked — contact Step Wilson at swilson@parksconservancy.org for final results and for permission to use.

Monday, September 03, 2018  
Posted by: Laura Kwasnoski

Happy Labor Day! The Monday II team spent their first day on the Hill learning landmarks and counting raptors. The day started out with a surprise visit from a Peregrine Falcon, continued with a steady stream of Red-tailed Hawk and Turkey Vulture sightings and concluded with good looks at a male and female American Kestrel. Overall, a windy yet exciting start for the team.

Total Sightings: 160
Hours Counted: 5
HPH: 32
Total Species: 7

Species Counts:
Turkey Vulture: 49
Northern Harrier: 2
Sharp-shinned Hawk: 1
Cooper's Hawk: 1
Red-tailed Hawk: 93
American Kestrel: 2
Peregrine Falcon: 1

Unidentified...
Accipiter: 1
Buteo: 5
Raptor: 5
Total unidentified: 11

Data have not been entirely checked — contact Step Wilson at swilson@parksconservancy.org for final results and for permission to use.

Sunday, September 02, 2018  
Posted by: Brian Tsuru and Olivia Wang

Foiled again by the fog! Though Sunday 1 did our best to remain optimistic for clearer skies, the thick fog did not retreat throughout the afternoon. Despite this, we were able to get a few glimpses of Turkey Vultures, Red-tailed Hawks, American Kestrels, and a Cooper's Hawk flying in and out of the clouds. We remain hopeful for future fogless Sundays!

Total Sightings: 0
Hours Counted: 0
HPH: 0
Total Species: 0

Data have not been entirely checked — contact Step Wilson at swilson@parksconservancy.org for final results and for permission to use.

Saturday, September 01, 2018  
Posted by: Erin Barry Brian Tsuru Olivia Wang

What started out as a foggy day, with very few birds in the first hour, turned into a clear day filled with Red-tailed Hawks, Turkey Vultures, Cooper's Hawks and American Kestrels! We also saw two Osprey fly over, as well as a juvenile Northern Harrier. It was the first day of noon Hawk Talks, and we got the chance to talk about raptor migration to some visitors to the Marin Headlands. We were glad the fog cleared to allow us a chance to identify some hawks!

Total Sightings: 152
Hours Counted: 6
HPH: 25.33
Total Species: 6

Species Counts:
Turkey Vulture: 50
Osprey: 2
Northern Harrier: 1
Cooper's Hawk: 10
Red-tailed Hawk: 75
American Kestrel: 11

Unidentified...
Raptor: 3
Total unidentified: 3

Data have not been entirely checked — contact Step Wilson at swilson@parksconservancy.org for final results and for permission to use.

Friday, August 31, 2018  
Posted by: Kirsti Carr and Erin Barry

Friday 1 had a great time watching warblers while waiting for the fog to clear; we had some great looks at Townsend's Warblers, Yellow Warblers, Common Yellowthroats, and even a Hermit Warbler, not to mention some other songbird species, as well. We finally made it up onto the hill, but the fog came back in and we had to call the day early. Before we called the day, we did get a great look at a male Kestrel and saw an adult male Northern Harrier to the Northeast before it disappeared into the fog.

Total Sightings: 12
Hours Counted: 1
HPH: 12
Total Species: 4

Species Counts:
Turkey Vulture: 3
Northern Harrier: 1
Red-tailed Hawk: 7
American Kestrel: 1

Data have not been entirely checked — contact Step Wilson at swilson@parksconservancy.org for final results and for permission to use.

Thursday, August 30, 2018  
Posted by: Kirsti Carr and Olivia Wang

Today was a beautiful day on Hawk Hill! However, the lack of wind made the entire morning very slow for hawk sightings. We did see two Osprey, including one juvenile, and got an exciting look at two Northern Harriers crossing over the entrance to the bay, flying very close to the water. Two different tagged Turkey Vultures visited the hill multiple times today, so to future teams: bring your zoom lenses! The only falcons we saw were the pair of Peregrine Falcons perched on the North Tower, though as we were packing up at the end of the day we got a close look at a beautiful female American Kestrel flying overhead.



Total Sightings: 165
Hours Counted: 6
HPH: 27.5
Total Species: 6

Species Counts:
Turkey Vulture: 70
Osprey: 2
Northern Harrier: 2
Cooper's Hawk: 5
Red-tailed Hawk: 82
Peregrine Falcon: 2

Unidentified...
Accipiter: 1
Buteo: 1
Total unidentified: 2

Data have not been entirely checked — contact Step Wilson at swilson@parksconservancy.org for final results and for permission to use.

Wednesday, August 29, 2018  
Posted by: Erin Barry and Brian Tsuru and Laura Kwasnoski

The Wednesday I team enjoyed a sunny, clear day for hawkwatching. Highlights included dark morph Red-tail Hawks, two White-tailed Kite appearances, double-digit American Kestrel counts, and over 300 raptor sightings in 6 hours. Overall, the team observed 9 species of raptor and enjoyed a full day on Hawk Hill.

Total Sightings: 306
Hours Counted: 6
HPH: 51
Total Species: 9

Species Counts:
Turkey Vulture: 92
White-tailed Kite: 2
Northern Harrier: 2
Sharp-shinned Hawk: 1
Cooper's Hawk: 13
Red-shouldered Hawk: 4
Red-tailed Hawk: 164
American Kestrel: 14
Peregrine Falcon: 6

Unidentified...
Accipiter: 2
Buteo: 4
Falcon: 1
Raptor: 1
Total unidentified: 8

Data have not been entirely checked — contact Step Wilson at swilson@parksconservancy.org for final results and for permission to use.

Tuesday, August 28, 2018  
Posted by: Kirsti Carr and Brian Tsuru

Today Tuesday 1 was fogged out, yet again. We spent some time birding by the Visitor's Center and saw a few birds, including a Townsend's Warbler, before we ventured up to the Annex. We did get to see a particularly beautiful Red-tailed Hawk show off its rufous breast while perched, and a Red-shouldered juvenile soared in front of us for enough time for us to get some practice following birds with scopes. Unfortunately, the fog did not clear, so we ended the day early. Hoping for better luck next time!

Total Sightings: 0
Hours Counted: 0
HPH: 0
Total Species: 0

Data have not been entirely checked — contact Step Wilson at swilson@parksconservancy.org for final results and for permission to use.

Monday, August 27, 2018  
Posted by: Laura Kwasnoski

Despite a foggy day on the Hill, the Monday I group managed to collect data for an hour of hawkwatching. The team arrived, keen-eyed and ready to work, and was rewarded with glimpses of a Red-tail hunting and a few Turkey Vultures circling around the site, even through the fog. However, the visibility decreased until the Hawkwatchers could no longer make out landmarks and thus ended recording for the day.

Total Sightings: 5
Hours Counted: 1
HPH: 5
Total Species: 2

Species Counts:
Turkey Vulture: 3
Red-tailed Hawk: 2

Data have not been entirely checked — contact Step Wilson at swilson@parksconservancy.org for final results and for permission to use.

Sunday, August 26, 2018  
Posted by: Brian Tsuru and Olivia Wang

Sunday 2 kicked off the season with a slow morning due to thick fog surrounding most of the quadrants. Despite this, we remained optimistic and spotted a few Red-tails and our familiar Turkey Vulture friend, #368! As the fog lifted, we caught a glimpse of the local Peregrines that hang out around the Golden Gate Bridge's north tower. Later on, we had a few American Kestrels zoom past us on the hill. All in all, it was a good day that wrapped up GGRO's first full cycle of the migration season. Here's to many more exciting days to come!

Total Sightings: 123
Hours Counted: 4.25
HPH: 28.94
Total Species: 5

Species Counts:
Turkey Vulture: 67
Osprey: 1
Red-tailed Hawk: 50
American Kestrel: 3
Peregrine Falcon: 2

Data have not been entirely checked — contact Step Wilson at swilson@parksconservancy.org for final results and for permission to use.

Saturday, August 25, 2018  
Posted by: Olivia Wang Laura Kwasnoski Brian Tsuru

Fog prevailed throughout the day, but Saturday 2 was still able to make it up to the hill for a few hours of hawkwatching. Through the clouds, we saw Red-tails hunting and interacting with one another, Turkey Vultures soaring over the valleys, and American Kestrels zooming fast overhead. Eventually, the poor visibility made us cut the day short, but the team still had a great time hanging out on the hill. Here's to hoping for fog-less days on future Saturday 2s!


Total Sightings: 67
Hours Counted: 2.95
HPH: 22.71
Total Species: 3

Species Counts:
Turkey Vulture: 33
Red-tailed Hawk: 31
American Kestrel: 2

Unidentified...
Raptor: 1
Total unidentified: 1

Data have not been entirely checked — contact Step Wilson at swilson@parksconservancy.org for final results and for permission to use.

Friday, August 24, 2018  
Posted by: Kirsti Carr

Friday 1 was another success story; what started off as a foggy morning turned into good conditions for hawkwatching. We got up onto Hawk Hill by noon and spent the afternoon counting. Being a small team with a lot of experience plus two apprentices and an intern, we spent a lot of time talking about field marks, flight style and shapes of the birds that passed us on the hill. We got a good look at a far away Peregrine Juvenile interacting with a Red-tailed juvenile, which made for great discussion and comparison. Thanks to some keen eyes we spotted two Kestrels in the last half hour of the day, as well as a tagged Turkey Vulture, whose number we were unable to read. We're all looking forward to reconvening on the hill, as a small but mighty team!

Total Sightings: 124
Hours Counted: 3.5
HPH: 35.43
Total Species: 5

Species Counts:
Turkey Vulture: 44
Cooper's Hawk: 2
Red-tailed Hawk: 67
American Kestrel: 2
Peregrine Falcon: 4

Unidentified...
Accipiter: 1
Raptor: 4
Total unidentified: 5

Data have not been entirely checked — contact Step Wilson at swilson@parksconservancy.org for final results and for permission to use.

Thursday, August 23, 2018  
Posted by: Erin Barry and Olivia Wang

Despite the hazy, overcast skies, Thursday 2 had a great time out on Hawk Hill today! We saw many Red-tails hunting over the hills, allowing us to get some practice aging them. We also caught glimpses of American Kestrels, Cooper's Hawks, and an Osprey throughout the day. There was much excitement mid-day when a group of Turkey Vultures flew right over the hill and we noticed one had a wing-tag. Everyone scrambled to get a good look at it, and together we were able to read its number - #368! Another highlight of the day was when an adult Peregrine Falcon zoomed around the hill, allowing everyone to get a nice long look at it. Overall, it was a wonderful first day and we are hopeful for more days like today.

Total Sightings: 259
Hours Counted: 5.5
HPH: 47.09
Total Species: 7

Species Counts:
Turkey Vulture: 109
Osprey: 1
Northern Harrier: 2
Cooper's Hawk: 4
Red-tailed Hawk: 129
American Kestrel: 7
Peregrine Falcon: 2

Unidentified...
Buteo: 1
Raptor: 4
Total unidentified: 5

Data have not been entirely checked — contact Step Wilson at swilson@parksconservancy.org for final results and for permission to use.

Wednesday, August 22, 2018  
Posted by: Kirsti Carr Laura Kwasnoski and Olivia Wang

Today served as a great first day on the hill for our Wednesday 2 team! The hill was clear this morning, so we all hustled into our cars to start hawkwatching as quickly as we could. The fog came in and out intermittently in the morning with few birds in the sky, but as the day went on it stayed clear for us and we started seeing some cool birds. Multiple groups of Rough-winged Swallows and Band-tailed Pigeons flew by the hill, and we saw harbor porpoises and a humpback whale spouting in front of the bridge. We saw five raptor species in total, with one juvenile Cooper's Hawk that showed up in the last five minutes of the day making the only Accipiter of the day. We're all looking forward to reconvening on the hill in September.

Total Sightings: 56
Hours Counted: 5.5
HPH: 10.18
Total Species: 5

Species Counts:
Turkey Vulture: 26
Osprey: 1
Northern Harrier: 2
Cooper's Hawk: 1
Red-tailed Hawk: 26

Data have not been entirely checked — contact Step Wilson at swilson@parksconservancy.org for final results and for permission to use.

Tuesday, August 21, 2018  
Posted by: Erin Barry and Brian Tsuru

A heavy fog enveloped Hawk Hill preventing Tuesday 2 team from going up to the hill. The team headed to the Annex where the fog lifted long enough to see a juvenile Red-tailed Hawk and a Northern Flicker. Despite today's fog, we hope for better luck the next time around. Hopefully the fog rises sooner for the rest of the week.

Total Sightings: 0
Hours Counted: 0
HPH: 0
Total Species: 0

Data have not been entirely checked — contact Step Wilson at swilson@parksconservancy.org for final results and for permission to use.

Monday, August 20, 2018  
Posted by: Laura Kwasnoski

The fog from the weekend continued to hang over Hawk Hill during Monday II's first Hawkwatch day. However, the group kept a positive attitude and was rewarded with looks at a few Red-necked Phalaropes, a couple Caspian Terns, quite a few Swallows (Cliff, Rough-winged, Barn, and maybe some Violet-Greens), as well as our first Red-tailed Hawks and Turkey Vultures of the season. Hopefully, next week will bring clearer weather and additional interesting birds to see!

Total Sightings: 0
Hours Counted: 0
HPH: 0
Total Species: 0

Data have not been entirely checked — contact Step Wilson at swilson@parksconservancy.org for final results and for permission to use.

Sunday, August 19, 2018  
Posted by: Brian Tsuru and Olivia Wang

Sunday 1 had a slow start due to the considerable amount of fog over Hawk Hill. However, the group still had a good time birding around the nearby lagoon, seeing seabirds such as Brown Pelicans, Double-crested Cormorants, and Western Gulls. We also spotted some Blue-gray Gnatcatchers and a Cedar Waxwing in the nearby bushes! Later, we moved over to a mowed field and got some great views of foraging passerines such as House Finches, Western Bluebirds, White-crowned Sparrows, and Spotted Towhees. There was also a great moment where we saw an American Kestrel angrily dive at a Red-tailed Hawk that was hanging out in a tree. Despite the poor weather conditions that prevented us from getting up the hill, Sunday 1 still had a fun morning birding!

Total Sightings: 0
Hours Counted: 0
HPH: 0
Total Species: 0

Data have not been entirely checked — contact Step Wilson at swilson@parksconservancy.org for final results and for permission to use.

Saturday, August 18, 2018  
Posted by: Erin Barry Brian Tsuru Olivia Wang

We were on the hill for only a short time due to fog but saw 7 species including our first Prairie Falcon of the season! We also saw an Osprey and some American Kestrels. While the fog kept coming in and out, distorting our view, we were still able to practice identifying hawks, getting especially good at aging Red-tail Hawks. We are hopeful for a clearer day the next time out at Hawk Hill.

Total Sightings: 63
Hours Counted: 2
HPH: 31.5
Total Species: 7

Species Counts:
Turkey Vulture: 27
Osprey: 1
Northern Harrier: 2
Cooper's Hawk: 1
Red-tailed Hawk: 26
American Kestrel: 4
Prairie Falcon: 1

Unidentified...
Buteo: 1

Data have not been entirely checked — contact Step Wilson at swilson@parksconservancy.org for final results and for permission to use.

Friday, August 17, 2018  
Posted by: Erin Barry and Kirsti Carr

A bright, sunny day, perfect weather for Friday 1 to go up to Hawk Hill. We got excited by the sighting of an Osprey flying overhead and got practice counting the numerous Red-tailed Hawks and Turkey Vultures in the area. There was an occasional Cooper's Hawk and American Kestrel to make 5 species seen on the hill. A successful day, we look forward to our next time out.

Total Sightings: 113
Hours Counted: 4
HPH: 28.25
Total Species: 5

Species Counts:
Turkey Vulture: 48
Osprey: 1
Cooper's Hawk: 4
Red-tailed Hawk: 48
American Kestrel: 2

Unidentified...
Accipiter: 3
Buteo: 1
Falcon: 1
Raptor: 5

Data have not been entirely checked — contact Step Wilson at swilson@parksconservancy.org for final results and for permission to use.

Thursday, August 16, 2018  
Posted by: Kirsti Carr and Olivia Wang

Today marked the first day of Hawkwatch for Thursday 1. The morning started off well; minutes after we got settled in our quadrants an Osprey appeared straight overhead. We continued having a steady stream of sightings throughout the day, with a handful of juvenile Red-tailed Hawks every hour plus others. We even caught sight of a Turkey Vulture that was tagged for our Project Zopilote! The vulture appeared a few times right below us and even though the bright blue patagial tags are large with three printed numbers, we all struggled to get a good view of the number. However, passing the tagged vulture between quadrants was a great team-building experience for us and added some excitement to our pre-peak day!

We would definitely recommend other Hawkwatchers who have cameras with good zoom capability to bring them out, not only to take pictures of the beautiful migrants we see, but also to take pictures of tagged vultures.


Total Sightings: 110
Hours Counted: 5
HPH: 22
Total Species: 6

Species Counts:
Turkey Vulture: 40
Osprey: 2
Northern Harrier: 1
Cooper's Hawk: 3
Red-tailed Hawk: 55
American Kestrel: 8

Unidentified...
Accipiter: 1

Data have not been entirely checked — contact Step Wilson at swilson@parksconservancy.org for final results and for permission to use.

Wednesday, August 15, 2018  
Posted by: Erin Barry Laura Kwasnoski and Brian Tsuru

Despite a foggy start to the week, today Hawkwatch kicked off the first official day of raptor counting for the 2018 fall migration season! We were lucky to have seen Peregrine Falcons, Northern Harrier and a small group of Purple Martins while on the Hill. Our team got a lot of practice identifying Red-tailed Hawks as many decided to hover overhead for long periods of time. An adult Accipiter flew overhead, helping to shake off the off-season rust of having to differentiate Cooper's Hawks from Sharp-shinned Hawks. In the end it was an adult Cooper's Hawk. A great first day on Hawk Hill, and an excited look to what the season will bring!

Total Sightings: 101
Hours Counted: 3.25
HPH: 31.08
Total Species: 6

Species Counts:
Turkey Vulture: 11
Northern Harrier: 1
Cooper's Hawk: 1
Red-tailed Hawk: 76
American Kestrel: 1
Peregrine Falcon: 3

Unidentified...
Buteo: 1
Raptor: 7

Data have not been entirely checked — contact Step Wilson at swilson@parksconservancy.org for final results and for permission to use.

Tuesday, August 14, 2018  
Posted by: Kirsti Carr and Brian Tsuru

We had a slow start for Tuesday 1, facing considerable fog this morning in Fort Cronkhite. Conditions around the office seemed to be improving around 11:30, so we took an optimistic drive up to the Annex. Unfortunately, the fog near the Hill did not clear, and we were forced to call the day early. However, the uncooperative weather did not keep our team from getting some good looks at juvenile Cooper's Hawks, a juvenile Red-shouldered Hawk, and even an Osprey! We remain hopeful for sunnier Hawkwatch days in the future.

Total Sightings: 0
Hours Counted: 0
HPH: 0
Total Species: 0

Data have not been entirely checked — contact Step Wilson at swilson@parksconservancy.org for final results and for permission to use.

Monday, August 13, 2018  
Posted by: Laura Kwasnoski

Greetings readers!
Here at GGRO, we're eager to announce the start of Hawkwatch 2018! This season, Hawkwatch is thrilled to have so many wonderful volunteers returning and proud to be joined by 28 new apprentices.
Unfortunately, the season started with a fogged-out day. However, the Monday 1 team managed to make the best of it by taking a Raptor ID quiz and watching flight videos. These educational moments were designed to help train new Hawkwatchers as well as to refresh raptor identification to everyone in the program. The team put their skills to the test, identifying a Red-tailed Hawk and Turkey Vultures down by the Lagoon later in the morning.
Overall, it's exciting to have everyone back for the fall migration. Best of luck to the rest of the teams this week!

Total Sightings: 0
Hours Counted: 0
HPH: 0
Total Species: 0

Data have not been entirely checked — contact Step Wilson at swilson@parksconservancy.org for final results and for permission to use.


Contact Information

Hawkwatch Hotline
(415) 561-3030 (ext. 2500)