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Downy Woodpecker
Let’s Get Together: Mixed Species Flocks

We often think about members of a species gathered together, such as “a gaggle of geese,” or a “pack of wolves.” But there are also examples of different species coming together, often to hunt or avoid being hunted. Read on to learn about one animal alliance.

Google Trekker Backpack
My Day Carrying a Google Trekker Backpack

We sent our somewhat-slothy reporter out on a steep, clifftop trail with a 40-pound Google Trekker. Read on to discover how he felt—and what he learned—while volunteering for this pioneering effort to capture “Street View”-like images of all our park trails.

A close up of a hawk
Puns and Punchlines: A Party Mix of Park Jokes

“What did the raptor say when his mate laid a snowy plover egg?” Get the answer—and more groan-worthy yolks (err, jokes)—as we share some of our classic #ParkPuns in celebration of International Joke Day on July 1.

National Trails Day
National Trails Day 2015: One of the Biggest Ever

We’re restoring mountain trails, creating important connections with our communities, building new bridges, and blazing new trails for National Trails Day 2015. Now the only question is: where will YOU be on Saturday, June 6?

owl at Muir Woods
Owls: Custom-Made for Night Hunting

The trailside discovery of a Great Horned Owl tail feather sparked this rumination: What are some of the many adaptations that make owls such proficient hunters in the dark, quiet night? Take wing and learn more about their unique traits.

Alcatraz Historic Gardens
Unearthed: Secrets of Alcatraz Gardens’ Ribbon-Winning Compost

We caught up with “Chief Composting Officer” Dick Miner to get the scoop on Alcatraz Historic Gardens’ award-winning compost—and learn some tips for your own.

Hawk Hill birdwatching
2014 Migration: Rise of the Rock Star Raptors

What do you call two smiling raptor banders? A pair o’grins! Beaming faces were abundant on Hawk Hill during the fall 2014 migration season, which featured plenty of “celebrity” raptors, a loopy Redtail, a bald eagle flyby, and 300 intrepid Golden Gate Raptor Observatory volunteers.

Red-tailed Hawk
Big Bird, Little Bird: Size and Identifying Sex of Raptors

As a nature lover hiking through the Marin Headlands, you might be able to quickly identify a couple of raptors flying overhead. At first glance, you also might discern their relative sizes. But what does that tell you about the sex of the raptors?

What Bird Personality Fits Your Bill?

In the film “Moonrise Kingdom,” Sam pointed to Suzy and asked: “What kind of bird are YOU?” Now you’ll never get caught without an answer, thanks to our new personality quiz, released just in time for International Migratory Bird Day. Find out your feathered phenotype!

Arabis blepharophylla, the coast rock cress
Cracking the Great Pollination Mystery

What’s the most beautiful native plant in the parklands that you’ve never seen? Here’s a hint: its magenta flowers are so bright that it’s known by a range of common names that sound like lipsticks: rose delight, red sensation, and spring charm. Still stumped? Read on, and learn about its intriguing mystery.