Calliope Hummingbird Identification and Size Measuring a mere 3 inches long and weighing one-tenth of an ounce, roughly the same as a table tennis ball, the Calliope hummingbird is incredibly tiny.

Mr. Cañas-Valle’s discovery, described in the journal Ornithology in November, may be the first documented example of ...

NPR's Scott Detrow speaks with Matthew Medler of the Cornell Lab of Ornithology about the best bird sounds of 2025 from their vast collection of recordings, and why their selections made the list.

It’s difficult to ID Eastern and Western screech-owl species—location is your best bet. Hear their call and learn about their size and nests.

Could this include species-level recognition, as different birds vary in size, shape and flapping frequency? Electroreception is widespread in aquatic animals, but is less common on land.

In an abundance of caution, the CDC last week advised hospitals and labs to do faster flu testing to help identify possible bird flu cases hiding in the flock of rising flu diagnoses. The Centers for ...

While species such as the starling, currently at number two in the Big Garden Birdwatch charts, has seen its numbers drop by more than 80% since 1979. We’ve lost 38 million birds from our skies in the ...

While species such as the starling, currently at number two in the Big Garden Birdwatch charts, has seen its numbers drop by more than 80% since 1979. We’ve lost 38 million birds from our skies ...

Around 45 million years ago, a 4.6 feet-tall (1.40 meters) flightless bird called Diatryma roamed the Geiseltal region in southern Saxony-Anhalt. An international team of researchers report on the ...