News tagged with feathers

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When a whistle beats a tweet

Biologists have discovered that a species of Australian pigeon has a secret way of alerting fellow birds to predators -- a "whistle" emitted by flapping wings when the bird takes off in alarm.

dateSep 01, 2009 in Plants & Animals
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What limits the size of birds?

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 ...

dateJun 16, 2009 in Plants & Animals
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Long, sexy tails not a drag on male birds

The long tails sported by many male birds in the tropics look like they're a drag to carry around and a distinct disadvantage when fleeing predators, but experiments by University of California, Berkeley, ...

dateMar 12, 2009 in Plants & Animals
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Falcon feathers pop-up during dive

Similar to wings and fins with self-adaptive flaps, the feathers on a diving peregrine falcon's feathers may pop-up during high speed dives, according to a study published in PLOS ONE on January 29, 2014 b ...

dateFeb 06, 2014 in Plants & Animals
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Banned pollutants are still found in sparrowhawks

High levels of polluting chemicals which are used as flame retardants have been detected in the livers of sparrowhawks in the UK. So-called PBDEs (Polybrominated Diphenyl Ethers) are a group of 209 closely ...

dateApr 26, 2013 in Ecology
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City birds adapt to their new predators

Faced with the same threat, city and country birds do not react in the same way despite being from the same species. According to a new study, urban birds have changed their anti-predator behaviour in new ...

dateNov 07, 2012 in Plants & Animals
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New species of Sinamia discovered

According to a paper published in the latest issue of Vertebrata PalAsiatica 2012 (4), Dr. ZHANG Jiangyong, Institute of Vertebrate Paleontology and Paleoanthropology (IVPP), Chinese Academy of Sciences, descri ...

dateNov 06, 2012 in Archaeology & Fossils
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