Most intimidating birds in sports

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As adults, the finches develop either red or black heads, a genetically determined trait.The red-headed birds are aggressive, dominant and avoided by others.To find out whether these traits were learned or inborn, Pryke examined competition between young Gouldian finches — whose heads, yet to blossom into coloured adulthood, are all dull grey.She first raised finches that were genetically destined to be red-headed with black-headed parents, raised others that were genetically destined to be black-headed with red-headed parents, and left still other finches to be raised by parents of the same colour group.Now, according to the Board's latest figures, there are around 25,000.From being virtually a dead sport, falconry has risen from the ashes to resonate with a new and unlikely band of followers.

Sarah Pryke of Macquarie University in Sydney tested this question in Australian Gouldian finches ().

The Red-tailed Hawk is one of North America’s larger hawks, and it’s one of the most familiar.

It is the most regularly sighted Buteo, or open country hawk, and can be found in farmland, highway margins, parks, native prairie, and at the edges of lightly wooded habitats.

Besides founding 10,000 Birds, Mike has also created a number of other entertaining but now extirpated nature blog resources, particularly the Nature Blog Network and I and the Bird.

The results are tempting researchers to suspect that in other animals, including ourselves, red's aggressive and intimidating character might also be hard-wired into brains from birth.

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