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It is the ultimate "gentleman's agreement". Rather than compete for females, male long-tailed manakins co-operate with their friends. The tropical birds pair up to perform a courtship song and dance, but the alpha male gets the girl every time. Meanwhile his "wingman" spends five years playing second fiddle. But he eventually inherits the mating site.


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Electronic tags have offered an insight into the mysteries of the 20,000km migration of Manx shearwaters. A team of UK scientists found that the birds made regular "stopovers" lasting up to two weeks, probably to feed and replenish their energy reserves.


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Female Gouldian finches "decide" to have more male chicks if they are less compatible with their mate.


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Small cameras strapped to four albatrosses in the southern Atlantic Ocean have shed light on the birds' feeding patterns.


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Low-quality females prefer low-quality males, at least in the avian world.
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To document this phenomenon as faithfully as possible, not a single piece of plastic in any of these photographs was moved, placed, manipulated, arranged, or altered in any way. These images depict the actual stomach contents of baby birds in one of the world's most remote marine sanctuaries, more than 2000 miles from the nearest continent.


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Ecologists have developed a way of monitoring the sizes of bird populations by recording their song.


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Brown-necked ravens team up to hunt lizards, revealing an unexpected level of intelligence, say scientists.
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The Iron Curtain that divided Europe for 46 years left an indelible imprint on the continent's wildlife. The isolation of Eastern Europe meant that far fewer alien bird species colonised it, scientists have found.


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A bird-like dinosaur that prowled an ancient forest 125 million years ago used venom to subdue its prey.


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Scientists have shown for the first time that being smart is sexy, and the most clever males get the most partners.


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