- Linota hornemanni Holboell, 1843
- Carduelis hornemanni (Holboell, 1843)
- Carduelis exilipes
- Acanthis exilipes
No status defined
Value of species
The Arctic redpoll (Acanthis hornemanni), known in North America as the hoary redpoll, is a bird species in the finch family Fringillidae. It breeds in tundra birch forest. It has two subspecies, A. h. hornemanni (Greenland or Hornemann's Arctic redpoll) of Greenland and neighbouring parts of Canada, and A. h. exilipes (Coues's Arctic redpoll), which breeds in the tundra of northern North America and Eurasia. Many birds remain in the far north; some birds migrate short distances south in winter, sometimes travelling with common redpolls.
The genus name Acanthis is from the Ancient Greek akanthis, a name for a small now-unidentifiable bird, and hornemanni commemorates the Danish botanist Jens Wilken Hornemann.
The Arctic redpoll is partially migratory and tends to move southwards in November and north again in March and April. It feeds mainly on seeds, particularly of alder and birch trees. Breeding takes place from May to July. The nest is built low down in a tree or bush and is neatly built with an outer layer of twigs, a middle layer of root fibres, fragments of juniper bark and lichens and an inner layer of down, willow buds and reindeer hair. Three to seven pale blue eggs with light reddish speckling are laid and incubated by the female. They hatch after about eleven days and the young fledge in about a further thirteen days.