Birds in the Golden Gate National Parks

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.

Even Charles Darwin, the preeminent biologist, had trouble defining a species. The more we learn, the harder it gets. Life does not always supply black-and-white categories—which can impact how we conserve and protect the species around us.

It seems remarkable that we can pinpoint an exact date—November 4, 1769—when Europeans first caught sight of San Francisco Bay. Afterward, nothing would ever quite be the same, ecologically or anthropologically, in this grand watershed. Or would it?

Follow the trials and triumphs of a Golden Gate Raptor Observatory intern, as told through several encounters with a particularly mysterious species of raptor—the Northern Harrier.

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.

A year ago, Monterey pines and Monterey cypresses were removed from Hawk Hill in the Marin Headlands to restore endangered mission blue butterfly habitat. How did this affect the birds during fall migration?

At your next holiday feast, impress friends and family with some fresh knowledge. Read on to learn the origins of popular holiday foods and discover their closest relatives, found in our parks. Please don’t forage for these items (quite a few are inedible)—but fill your plate with some food for thought!

We fear them not because they would kill us, but because their mere company means we may already be dead. Our imagination conjures a thirsty miner, crawling across the desert, exhaling a last gasp, and—poof!—he is theirs. Here’s an alternate view of vultures.

On September 27, 2012, on Hawk Hill, we counted 295 Broad-winged Hawk sightings, 10 times our previous one-day count for that species. We even exceeded our season-total record—248 sightings—in just that one day. Aside from these impressive numbers, why is this exciting?

This season, in 2012, the GGRO is able to use brand-new technology to help us track bird movements. On Friday, August 23 we put out a GSM (cell phone) transmitter on a female juvenile Red-tailed Hawk, nicknamed Augusta.