Golden Gate Raptor Observatory

Sharp-shinned hawk: comparing 2022 with the ten-year mean
Our Work
There was a weird and striking delay in Sharpshins.
Red-shouldered Hawk Illustration by Siobhan Ruck
Our Work

Golden Gate Raptor Observatory

The 2022 season summary of the Golden Gate Raptor Observatory

Illustration of soaring Turkey Vulture looking downward.
Our Work
Beyond being widely misunderstood by the general public, Turkey Vultures are often misunderstood from an ecological perspective as well.
Banding pliers illustration by Lora Roame
Our Work
In 2022, the GGRO Banding Program had huge accomplishments before the field season even started.
Illustration of bald eagle.
Our Work
The 2022 fall migration was a season of almost-recovery from COVID-19, but someone forgot to tip off the hawks, as we had one of our lowest overall counts in many years.
A Red-shouldered Hawk with brown and reddish-brown feathers looking over its shoulder, against a blue sky.
Conservation
Explore trends over 30 years of Red-shouldered Hawk migration observed at Hawk Hill.
Two Turkey Vultures, one bearing the GGRO blue wing-tag 368R, bask on the outcropping below Hawk Hill
Conservation
The Vulture Ecology Study: 2020 Update is part of the Golden Gate Raptor Observatory (GGRO) 2020 Pacific Raptor Report. It was authored by biologist Teresa Ely, GGRO’s Banding Manager and resident vulture expert. The GGRO has been a program of the Parks Conservancy for over 30 years, fulfilling their mission...
Our Work
All data displayed on this site are preliminary and have not yet undergone quality control. Written permission is required to use the data.
Ferruginous Hawk
Our Work
During the autumn months, GGRO hawkwatch volunteers identify and tally 19 species of birds of prey.
GGRO intern Kris Vanesky examines blood cells
Our Work
To date, the Golden Gate Raptor Observatory (GGRO) has published 26 articles in peer-reviewed scientific journals, contributed to Master's and PhD candidates' research, and given more than 100 presentations at national and international conferences.