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Why Do Grebes Eat Their Feathers?
Eared Grebes eat brine shrimp and aquatic insects for sustenance, but rigid exoskeletons make them hard to digest. So these grebes – along with their…
1 year, 9 months ago
Great Horned Owls Nest
High in a leafless cottonwood, a female Great Horned Owl incubates two eggs. As light snow falls on her back, her mate roosts nearby. Since December,…
1 year, 9 months ago
Different Beaks, Different Foods
For some birds like hermit hummingbirds, the difference between sexes starts with the beak. Females hermit hummingbirds typically have curved bills w…
1 year, 9 months ago
The Robin's Namesake
Like the American Robin, the European Robin is a bird of yards and gardens. But it’s not much bigger than a chickadee. The robin’s likeness turns up …
1 year, 9 months ago
A Swirl of Snow Geese
Snow Geese nest from far northeastern Russia to Greenland, in the arctic and subarctic. They winter in large flocks on the deltas of rivers in northw…
1 year, 9 months ago
Winter Brings Falcons
A Merlin hunts boldly from a high perch. A Peregrine Falcon dives on a hapless pigeon, with an air speed approaching 200 miles per hour. The Gyrfalco…
1 year, 9 months ago
Why Do Chickadees Come and Go?
A chickadee comes in to the feeder, quickly grabs a seed, and flies away. It may return immediately, but it's more likely to wait its turn. When a wh…
1 year, 9 months ago
The Hoopoe's Smelly Family
The Eurasian Hoopoe isn’t picky about where it nests. But whether it builds a home in a tree cavity, termite mound, or nest box, it’ll be stinky. Mot…
1 year, 9 months ago
New Homes for Cockatoos
The alpine forests of Australia’s southeast are home to an iconic pint-sized gray parrot with a bright red mohawk, and a call that’s been described a…
1 year, 9 months ago
Fishing with Least Bitterns
The smallest heron in the U.S. by far is the Least Bittern, at just 10 to 12 inches tall. Watching for prey, bitterns lean forward while pulling thei…
1 year, 9 months ago