ornithology

Journal Club: Polly gets his own cracker: clever cockatoo manufactures, uses tools | video |

Thumbnail image for Journal Club: Polly gets his own cracker: clever cockatoo manufactures, uses tools | video | by Grrlscientist 21 November 2012

SUMMARY: Not known to manufacture or use tools in the wild, a captive cockatoo demonstrates that parrots can make tools to suit their needs.   If you’ve ever lived with a parrot, then you are well aware that they come with a built-in multi-purpose tool attached to their faces. For this reason, most parrots do [...]

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Journal Club: The economics of tree swallow brood sex ratios

Thumbnail image for Journal Club: The economics of tree swallow brood sex ratios by Grrlscientist 14 December 2011

Tree Swallow brood sex ratios SUMMARY: Tree swallows reveal that brood sex ratios are an economic balancing act with far-reaching evolutionary consequences Skewed sex ratios have been widely discussed in the news. But a demographic imbalance in the sexes is not purely a human phenomenon: it can occur throughout the animal kingdom. Several studies have [...]

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Inside the AMNH Collections: Ornithology

Thumbnail image for Inside the AMNH Collections: Ornithology by Grrlscientist 23 November 2011

SUMMARY: This video takes you on a behind-the-scenes tour through the largest and most complete ornithology collection in the world.   Natural history collections are important. These collections, usually maintained by a museum, make up a library that scientists consult to answer all sorts of questions, from deciphering evolutionary relationships of the Hawaiian honeycreepers to [...]

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Journal Club: American crows: the ultimate angry birds?

Thumbnail image for Journal Club: American crows: the ultimate angry birds? by Grrlscientist 6 July 2011

Newly published research shows that crows remember the faces of humans who have threatened or harmed them, and these memories probably last for the bird’s lifetime. Not only do crows scold dangerous people, but they include family members — and even strangers — into their mob. The hostile behaviour of crows within mobs allows naïve [...]

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