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Bird vocalization
Bird vocalization
Wing feathers of a male club-winged manakin, with the modifications noted by P. L. Sclater in 1860 and discussed by Charles Darwin in 1871. The bird p
Wing feathers of a male club-winged manakin, with the modifications noted by P. L. Sclater in 1860 and discussed by Charles Darwin in 1871. The bird produces sound with its wings.
The Western Australian raven (Corvus coronoides, ssp. perplexus) makes a slow, high-pitched ah-ah-aaaah sound. Australian raven territorial callⓘ
The Western Australian raven (Corvus coronoides, ssp. perplexus) makes a slow, high-pitched ah-ah-aaaah sound. Australian raven territorial callⓘ
A mated pair of white-naped cranes (Antigone vipio) performing a "unison call", which strengthens the pair bond and provides a territorial warning to
A mated pair of white-naped cranes (Antigone vipio) performing a "unison call", which strengthens the pair bond and provides a territorial warning to other cranes
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Archaeopteryx is often considered the oldest known true bird.
Archaeopteryx is often considered the oldest known true bird.
Anchiornis huxleyi is an important source of information on the early evolution of birds in the Late Jurassic period.
Anchiornis huxleyi is an important source of information on the early evolution of birds in the Late Jurassic period.
Confuciusornis sanctus, a Cretaceous bird from China that lived 125 million years ago, is the oldest known bird to have a beak.
Confuciusornis sanctus, a Cretaceous bird from China that lived 125 million years ago, is the oldest known bird to have a beak.
The range of the house sparrow has expanded dramatically due to human activities.
The range of the house sparrow has expanded dramatically due to human activities.