A tiny songbird weighing just two tablespoons of sugar migrates from the Arctic to Africa and back, a distance of up to 29,000 kilometres (18,000 miles), scientists reported on Wednesday.
Feb 15, 2012
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Using field experiments in Africa and a new computer model that gives them a bird's eye view of the world, Cambridge scientists have discovered how a bird decides whether or not a cuckoo has laid an egg in ...
Apr 26, 2010
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The eggs laid by two African bird species have evolved different color patterns over a period of just 40 years, according to new research published in The American Naturalist. The quick change appears to be ...
Apr 16, 2012
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To minimise the chance of being recognised and thus attacked by the birds they are trying to parasitize, female cuckoos have evolved different guises. The new research, funded by the Natural Environment Research ...
Aug 02, 2012
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(Phys.org) -- Nowhere it seems, are bird watchers more enthusiastic than in Britain, where groups congregate to watch and discuss the most intimate details of their favorite fowl. Of consternation to such ...
May 07, 2012
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(PhysOrg.com) -- The American coot is a drab, seemingly unremarkable marsh bird common throughout North America. But its reproductive life is full of deception and violence.
Dec 16, 2009
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New research reveals how biological arms races between cuckoos and host birds can escalate into a competition between the host evolving new, unique egg patterns (or 'signatures') and the parasite new forgeries.
Apr 14, 2011
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(PhysOrg.com) -- Australian cuckoo birds have taken a new evolutionary step – mimicking the color of their host young to avoid certain death, according to a study by researchers from The Australian National ...
Jan 12, 2011
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Researchers at the University of Sheffield have discovered that cuckoo eggs are internally incubated by the female bird for up to 24 hours before birth, solving for the first time the mystery as to how a cuckoo chick is able ...
Sep 22, 2010
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The biota of island archipelagos is of considerable interest to biologists. These isolated areas often act as 'evolutionary laboratories', spawning biological diversity rapidly and permitting many mechanisms ...
Aug 30, 2012
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(Phys.org)—Countless drawers containing hundreds of thousands of bee specimens lie in insect museums and private collections across North America, some dating back to the 1800's. These historical collections ...
Oct 18, 2012
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(PhysOrg.com) -- Increased competition for rare breeding sites causes female blue tits to invest more time in their current brood, to spend more time feeding their offspring and also to produce more male offspring ...
Mar 09, 2009
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