Common redpoll

Common redpoll
Male, Quebec Canada
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Passeriformes
Family: Fringillidae
Genus: Acanthis
Species: A. flammea
Binomial name
Acanthis flammea
(Linnaeus, 1758)
Subspecies
  • A. f. flammea – Mealy
  • A. f. icelandica – Icelandic
  • A. f. rostrata – Greenland
  • A. f. cabaret - Lesser redpoll
Synonyms
  • Carduelis flammea
  • Carduelis rostrata
  • Acanthis flammea
  • Carduelis islandica
  • Acanthis islandica

The common redpoll (Acanthis flammea) is a species of bird in the finch family. It breeds somewhat further south than the Arctic redpoll, also in habitats with thickets or shrubs.

Taxonomy

The common redpoll was listed in 1758 by Linnaeus in the 10th edition of his Systema Naturae under the binomial name Fringilla flammea.[2][3] The current genus name Acanthis is from the Ancient Greek akanthis, a name for a small now-unidentifiable bird, and flammea is the Latin for "flame-coloured".[4]

The common redpoll was previously placed in the genus Carduelis. Molecular phylogenetic studies showed that the Arctic and common redpolls formed a distinct lineage, so the two species were grouped together in the resurrected genus Acanthis.[5][6]

Subspecies

The nominate subspecies A. f. flammea, the mealy redpoll, breeds across the northern parts of North America and Eurasia. There is also an Icelandic subspecies, the Icelandic redpoll (A. f. islandica), and one that breeds in Greenland and Baffin Island called the Greenland redpoll (A. f. rostrata). Many taxonomic authorities consider the lesser redpoll a subspecific form of the common redpoll.[6][7] Together the Iceland and Greenland forms are sometimes known as 'northwestern redpolls'. All forms migrate south into Canada, northern USA, or Eurasia. These birds are remarkably resistant to cold temperatures[8] and winter movements are mainly driven by the availability of food. There are two distinct populations (one lighter, one darker) united in islandica, the relationships of which are unresolved.[9]

Description

Eggs at the Muséum de Toulouse

The common redpoll is a small brownish-grey finch with dark streaks and a bright red patch on its forehead. It has a black bib and two pale stripes on the wings. Males often have their breasts suffused with red. It is smaller, browner and more streaked than the generally similar Arctic redpoll, adults measuring between 11.5 and 14 centimetres (4.5 and 5.5 in) in length and weighing between 12 and 16 grams (0.42 and 0.56 oz). The rump is streaked and there is a broad dark brown streak across the vent. It has brown legs, dark-tipped yellowish bills and dark brown irises.[10]

Calls from a flock of birds feeding, Iowa USA

Similar species

The mealy redpoll is larger and paler than the lesser redpoll with which it often mixes, apparently without significant interbreeding though sympatry was established too recently to draw firm conclusions.[11] The male mealy redpolls are darker than the similarly sized Arctic redpolls but the females are almost identical.

Foraging redpoll filmed in Holland

Behaviour

The range of the common redpoll extends through northern Europe and Asia to northern North America, Greenland and Iceland. It is a partial migrant, moving southward in late autumn and northward again in March and April. Its typical habitat is boreal forest of pines, spruces and larches. It feeds mainly on seeds, principally birch and alder seed in the winter.[10]

The common redpoll builds its nest low down in a tree or bush. The nest has an outer layer of thin 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 speckled eggs are laid and incubated by the female. They hatch after about eleven days and the young fledge in about a further thirteen days.[10]

References

  1. ↑ BirdLife International (2013). "Carduelis flammea". IUCN Red List of Threatened Species. Version 2013.2. International Union for Conservation of Nature. Retrieved 26 November 2013.
  2. ↑ Paynter, Raymond A. Jnr., ed. (1968). Check-list of birds of the world, Volume 14. Cambridge, Massachusetts: Museum of Comparative Zoology. p. 251.
  3. ↑ Linnaeus, C. (1766). Systema Naturæ per regna tria naturae, secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis, Volume 1 (in Latin) (10th ed.). Holmiae:Laurentii Salvii. p. 182.
  4. ↑ Jobling, James A. (2010). The Helm Dictionary of Scientific Bird Names. London, United Kingdom: Christopher Helm. pp. 29, 160. ISBN 978-1-4081-2501-4.
  5. ↑ Zuccon, Dario; Prŷs-Jones, Robert; Rasmussen, Pamela C.; Ericson, Per G.P. (2012). "The phylogenetic relationships and generic limits of finches (Fringillidae)" (PDF). Molecular Phylogenetics and Evolution. 62 (2): 581–596. doi:10.1016/j.ympev.2011.10.002.
  6. 1 2 Gill, Frank; Donsker, David (eds.). "Finches, euphonias". World Bird List Version 5.3. International Ornithologists' Union. Retrieved 23 July 2015.
  7. ↑ BirdLife International - IUCN http://www.birdlife.org/datazone/species/factsheet/22725044
  8. ↑ adn.com | Wildlife News : Some birds tougher than winter
  9. ↑ Seutin, G.; Ratcliffe, L. M. & Boag, P. T. (1995) Mitochondrial DNA homogeneity in the phenotypically diverse redpoll finch complex (Aves: Carduelinae: Carduelis flammea - hornemanni). Evolution 49(5): 962–973. doi:10.2307/2410418 (HTML abstract and first page image)
  10. 1 2 3 "Redpoll: Carduelis flammea". NatureGate. Retrieved 2013-12-13.
  11. ↑ Sangster, George; Knox, Alan G.; Helbig, Andreas J.; Parkin, David T. (2002). "Taxonomic recommendations for European birds". Ibis. 144 (1): 153–159. doi:10.1046/j.0019-1019.2001.00026.x.
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