American white pelican has a large, heavy beak that's yellow-orange in color. Besides catching fish, pelicans use their bills to get rid of excess salt ...
“normal” beaks (examples shown of a petrel and a gull) and a bird with a tactile bill-tip organ (a tinamou, close relative of ostriches and emus and which has an ancestral bill-tip organ ...
Sir David Attenborough comes face-to-face with the dodo, the first animal driven to extinction by humans in recorded history. In this extraordinary encounter, he reveals how this long-lost species has ...
leaving mainly large, tough seeds that the finches normally ignore. Under these drastically changing conditions, the struggle to survive favored the larger birds with deep, strong beaks for ...
As I hold it carefully in my hand in order to transfer it to the recording cage, the little gray bird bites my finger ... that they oscillate their large beaks on average at three times lower ...
the bigger the beak in general, but even when we take this kind of correlation into account, still some birds might have disproportionately large beak for their size. So the beak size itself was also ...
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