How Long Do Baby Hummingbirds Stay in a Nest?
How long do hummingbird parents take care of their young?
Urban Nature
Caught on Camera: The Presidio’s Coyotes When People Aren’t Around
Most coyotes won’t stay within the Presidio’s relatively safe confines.
Meet a Butterfly Illustrator and His Three-Year Project to Paint the Gossamer Wings
Liam O'Brien went from Broadway actor to butterfly observer ... and then some.
The City Nature Challenge Returns With More People, Places, and Nature
The global citizen science competition returns April 27-May 3.
San Francisco Opens a New Campground at Sunrise Point
Residents and advocates turn to the challenge of keeping it welcome.
Natural Green for St. Patrick’s Day
What are some green things to see in nature in the Bay Area?
In the Shadow of the Xerces Blue
San Francisco tries to change the conditions that once made it famous for butterfly extinction
Ospreys’ Recovery From Pollution and Shooting is a Global Conservation Success Story
Ospreys have made a spectacular recovery from chemical pollution, guns and traps, thanks to many dedicated conservationists and an amazing ability to thrive in close quarters with humans.
Counting Birds, Who are Counting on Humanity
In a dark year, citizen science can shine a light on the natural world -- and on humanity.
Crows are Wicked Smart
Should an animal's intelligence change the way we treat it?
