(PhysOrg.com) -- The size of the black breast bib - the badge - and bill colour of male House Sparrows change over the course of the year. Such ornaments usually signal quality and dominance of a male to his conspecifics ...
Plants & Animals
Jun 4, 2010
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(PhysOrg.com) -- Bats can distinguish between the calls of their own and different species with their echolocation calls, report German scientists of the Max Planck Institute for Ornithology in Seewiesen. This applies even ...
Plants & Animals
May 18, 2010
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Human parents often pay more attention to a few favored children among all of their offspring. It has already been known that birds do it too, and it may result in some baby birds dying in the nests. According to the recent ...
Plants & Animals
May 3, 2010
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(PhysOrg.com) -- Some female zebra finches foist a part of their eggs on their neighbours. Scientists of the Max Planck Institute for Ornithology in Seewiesen discovered that in every fifth nest there is one egg that is not ...
Plants & Animals
Apr 22, 2010
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(PhysOrg.com) -- Small migratory birds, like the garden warbler, must make stopovers on their journeys to their breeding grounds. When they have crossed extensive ecological barriers, such as deserts or oceans, they must ...
Plants & Animals
Feb 17, 2010
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(PhysOrg.com) -- Female zebra finches do not only differ in the way they chose their mate but also in their preference for a partner.
Plants & Animals
Jan 12, 2010
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(PhysOrg.com) -- Scientists have succeeded for the first time in fitting monarch butterflies with a radio transmitter and in tracking them from an aircraft over a long distance on their flight northwards during the butterflies’ ...
Plants & Animals
Jul 24, 2009
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(PhysOrg.com) -- Fairy-wrens are notorious for their infidelity: despite living in seemingly harmonious monogamous pairs, females produce mostly illegitimate young, and males spend more time courting other females than their ...
Plants & Animals
May 19, 2009
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