Latest Bird anatomy Stories
Recent studies have shown that birds sporting brightly colored plumage are more susceptible to being infected with feather-eating bacterium.
Catching adult eagles for research is a difficult task, so scientists at Purdue University say they are using eagle feathers to learn more about the birds. Many birds are small, easy to catch and abundant, Associate Professor Andrew DeWoody, who is leading the study, said.
Catching adult eagles for research purposes is no easy task, but a Purdue University researcher has found a way around the problem, and, in the process, gathered even more information about the birds without ever laying a hand on one.
Why aren't birds larger? Fifteen-kilogram swans hold the current upper size record for flying birds, although the extinct Argentavis of the Miocene Epoch in Argentina is estimated to have weighed 70 kilograms, the size of an average human.
Some of the brightest colors in nature are created by tiny nanostructures with a structure similar to beer foam or a sponge, according to Yale University researchers.
Experiments show that hummingbirds suffer few energy costs when they grow long tails.
The chirps and beeps of hummingbirds at times
The source of the noise which the Annaâ€™s hummingbird emits has been a long-lived topic of debate among ornithologists. This particular species of hummingbird, which is native to the West Coast of the United States, makes a loud, brief chirp when he dives to impress female hummingbirds and entice them into mating.
The militaryâ€™s next generation of airborne drones wonâ€™t be just small and silent â€“ theyâ€™ll also dive between buildings, zoom under overpasses and land on apartment balconies.
Biologists testing a mathematical model of the mechanism birds use to control the growth of complex feathers found that plumed feather structures involve the coordination of at least two genes that activate and that inhibit barb growth.
- In medieval musical notation, a sign or neume denoting a shake or trill.