Surf scoters showed up in the Bay in astonishing numbers in winter 2019, pausing a three-decade decline and puzzling scientists
How Long Do Baby Hummingbirds Stay in a Nest?
How long do hummingbird parents take care of their young?
Caught on Camera: The State Bird, Surprised
Quails can be found in a wide variety of habitats throughout California and the Bay Area, from scrublands to oak forests. They even sometimes wander into suburbs.
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.
I Used Facial Recognition Technology on Birds
Birders know you can recognize individual birds. Can a computer scientist train a machine to do so?
Where Do Birds Go When it Rains?
Guest naturalist Josiah Clark reveals how birds cope with stormy weather.
Fountain a Watering Hole for Drought-Affected Birds
Where does a thirsty bird go when the drought hits hard?
Ask the Naturalist: Wall-to-Wall Blue Jays?
A Berkeley reader asks why he’s seeing so many jays lately.
Avian Cholera Outbreak in Redwood Shores Pond
An avian cholera outbreak at a Redwood Shores wastewater treatment pond and popular birding site -had killed more than 200 birds as of Tuesday, according to the U.S. Fish and Wildlife Service.