Redpoll

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The redpolls are a group of small passerine birds in the finch family Fringillidae, which have characteristic red markings on their heads. They are placed in the genus Acanthis. The genus name Acanthis is from the Ancient Greek akanthis, a name for a small now-unidentifiable bird.

All redpolls are northern breeding woodland species, associated with birch trees (although there are introduced populations in the southern hemisphere, in New Zealand and nearby subantarctic islands). They are small birds, brown or grey-brown above and with a red forehead patch. The adult male's breast is washed in red, but in females and young birds the buff breast and white belly are streaked with brown. The bill is small and yellow. Some birds, particularly young ones, are difficult to assign to species.

They are primarily seed-eaters, and often feed acrobatically like a tit; their diet may include some insects in summer. They have a dry reeling song and a metallic call. They lay four to seven eggs in a nest in a tree or, in the case of the Arctic redpoll, a large bush. They can form large flocks outside the breeding season, sometimes mixed with other finches.