(PhysOrg.com) -- Not only land birds, but also some seabirds, cover enormous distances during migration: the sooty shearwater, for example, circumnavigates the earth one and a half times on its travels. Despite this, relatively ...
Plants & Animals
Mar 15, 2010
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(PhysOrg.com) -- Cooperative behaviors are rare in the animal kingdom and remain a great enigma for evolutionary biologists. A new study by Frederique Dubois, a professor at the University of Montreal Department of Biology ...
Plants & Animals
Feb 25, 2010
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(PhysOrg.com) -- Birds' alarm calls serve both to alert other birds to danger and to warn off predators. And some birds can pull a ventriloquist's trick, singing from the side of their mouths, according to a UC Davis study.
Plants & Animals
Dec 3, 2009
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Birds are commonly thought of as being the paragon of monogamous fidelity, staying true to their mate for life. Yet, in most bird species, some nests contain offspring of individuals other than the one's tending the nest.
Evolution
Jun 3, 2009
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On Nov. 1, 1933, Mrs. Bruce Reid recorded seeing both a male and female ivory-billed woodpecker in Texas. And on May 28, 1938, Oscar McKinley Bryans observed a ruby-throated hummingbird in Michigan, noting that the birds ...
Environment
Mar 18, 2009
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(PhysOrg.com) -- “What you see is what you get” often is the mantra in the highly competitive life of birds, as they use brilliant displays of color to woo females for mating. Now researchers are finding that carotenoids ...
Feb 13, 2009
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