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redpoll

 
Dictionary: red·poll   (rĕd'pōl') pronunciation

n.
Any of several small finches of the genus Carduelis of northern North America and Eurasia, especially C. flammea, having a red crown and black chin.


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Animal Encyclopedia:

Common redpoll

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Acanthis flammea

SUBFAMILY

Carduelinae

TAXONOMY

Acanthis flammea Linnaeus, 1758. Three subspecies are recognized.

OTHER COMMON NAMES

English: Redpoll; French: Sizerin flammé; German: Birkenzeisig; Spanish: Pardillo Sizerin.

PHYSICAL CHARACTERISTICS

The common redpoll is about 4.7–5.5 in (12–14 cm) in body length and weighs about 0.5 oz (14 g). The tail is forked and the beak is sharply pointed and has a black tip. The overall body coloration is gray-brown, with gray wings having light wing-bars, a lighter belly streaked with brown, a red crown on the top of the head, and a black patch beneath the lower mandible. The male has orange-red on the face and chest, but the extent of this varies among geographical races of this widespread species.

DISTRIBUTION

The common redpoll is a very wide-ranging species with a circumboreal distribution, occurring in suitable habitat in northern North America as well as in Eurasia. It occurs in Newfoundland, northern Quebec and Labrador, across the rest of northern Canada to Alaska, and through Siberia and northern Russia to northern Europe and Iceland. It is an irregular migrant that may occur as far south in the United States as California, Oklahoma, and the Carolinas, and also through much of southern Europe, Russia, the Caucasus, and central China. It was introduced to New Zealand in the nineteenth century, where it persists as a non-native songbird.

HABITAT

The common redpoll breeds in shrubby tundra, and in the winter occurs in brushy pastures, open forest and thickets, and weedy fields. During the winter they may sleep in snow tunnels to keep warm. They are able to hang upside down chickadee-like to pry birch seeds from hanging catkins. South of the boreal tree-line, the local wanderings and population densities of common redpolls depends on how abundant their winter food is.

BEHAVIOR

Common redpolls are active and mobile birds. Even at rest, much fidgeting and twittering is evident. They are highly social birds, particularly during the non-breeding season when they aggregate into flocks, often with other species of finches. In areas where the ranges of the common redpoll and the hoary redpoll (Acanthis hornemanni) overlap, such as northern Norway, the two species may form mixed breeding pairs and produce hybrids of intermediate appearance.

FEEDING ECOLOGY AND DIET

Common redpolls feed on grains and seeds, particularly favoring birch seeds. A stand of winter weeds visited by a flock of these birds is a scene of feverish activity as they tear dried flower stalks apart and then drop to the ground to pick up the seeds.

REPRODUCTIVE BIOLOGY

Common redpolls are somewhat nomadic in their local breeding. If the local supply of birch seed is abundant they may settle in numbers. After raising their first crop of fledglings, they may move elsewhere to exploit another abundant resource of birch seeds. Their nest is a neat cup of woven grass, moss, and twigs placed in a fork of a willow branch. The clutch is four to six pale green eggs incubated by the female for 10–11 days. The altricial chicks are brooded by the female. They are fed primarily by the female with some male assistance at times. Fledging takes place in 9–14 days.

CONSERVATION STATUS

Not threatened. A widespread and abundant species.

SIGNIFICANCE TO HUMANS

Common redpolls are lively and pleasant birds, and are sought after by birdwatchers, particularly during the winter months. In New Zealand they are sometimes considered an introduced nuisance because of damage caused to fruit trees when their buds are eaten.

Western Bird Guide:

common redpoll

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Carduelis flammea 5-5½″ (13-14 cm). Note the bright red cap on the forehead of this little winter finch. Gray-brown, streaked; note the black chin and dark flank streaks. Male has a pink breast. Among the more typical Redpolls, look for "frostier" birds. If the rump is without streaks and the bill is smaller, the bird is a "Hoary" Redpoll-until recently designated a species (Carduelis hornemanni), but now regarded as a northern population of the Common Redpoll.

Voice: In flight, a rattling chet-chet-chet-chet. Song, a trill, followed by the rattling chet- chet-chet-chet.

Range: Circumboreal.

Habitat: Birches, tundra scrub. In winter, weeds, brush.


WordNet:

redpoll

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Note: click on a word meaning below to see its connections and related words.

The noun has 2 meanings:

Meaning #1: small siskin-like finch with a red crown
  Synonym: Carduelis hornemanni

Meaning #2: small siskin-like finch with a red crown
  Synonym: Carduelis flammea


Wikipedia:

Redpoll

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Redpolls
Common redpoll in Oulu, Finland.
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Passeriformes
Family: Fringillidae
Genus: Carduelis (but see article text)
Species

Carduelis flammea
Carduelis cabaret
Carduelis hornemanni

The Redpolls are a group of small passerine birds in the finch family Fringillidae which have characteristic red markings on their heads. They were formerly placed into the genus Acanthis together with the linnets and the twite, but their closest relatives are actually the crossbills, that are placed in the genus Loxia[1]. The latter genus could be merged with Carduelis in a single genus, for which the name Loxia would then have priority. But this would imply to change the name of a large number of species, and as their adaptations and biogeography are evolutionarily quite peculiar, it would be better to reinstate Acanthis instead, including only the redpolls. There are several different very closely related (Seutin et al., 1995) forms of redpolls which could be considered as anything from one to five species (Knox, 1988). Recent studies (Herremans, 1990; Sangster et al., 2002) tend to support three species, but this is certainly not definite.

All redpolls are northern breeding woodland species, associated with birch trees. They are small dumpy 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 4-7 eggs in a nest in a tree or, in the case of Arctic Redpoll, a large bush. They can form large flocks outside the breeding season, sometimes mixed with other finches.

The species are:

  • The Arctic Redpoll, Carduelis hornemanni (subspecies C. h. hornemanni (Greenland Arctic Redpoll) and C. h. exilipes (Hoary Redpoll))
  • The Common Redpoll, Carduelis flammea (Nominate C. f. flammea (Mealy Redpoll); subspecies C. f. islandica and C. f. rostrata (Greenland Redpoll))
  • The Lesser Redpoll, Carduelis cabaret

References

  1. ^ Arnaiz-Villena et al., 2001
  • Arnaiz-Villena, A.; Guillén, J.; Ruiz-del-Valle, V.; Lowy, E.; Zamora, J.; Varela, P.; Stefani, D. & Allende, L. M. (2001): Phylogeography of crossbills, bullfinches, grosbeaks, and rosefinches. Cellular and Molecular Life Sciences 58(8): 1159–1166. PDF fulltext
  • Herremans, M. 1990. Taxonomy and evolution in Redpolls Carduelis flammea – hornemanni; a multivariate study of their biometry. Ardea 78(3): 441–458. HTML abstract
  • Knox, A. G. (1988): The taxonomy of redpolls. Ardea 76(1): 1–26.
  • 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 PDF fulltext
  • 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)

External links

Further reading

  • Knox, A. G., and P. E. Lowther. 2000. Hoary Redpoll (Carduelis hornemanni). In The Birds of North America, No. 544 (A. Poole and F. Gill, eds.). The Birds of North America, Inc., Philadelphia, PA.
  • Knox, A. G., and P. E. Lowther. 2000. Common Redpoll (Carduelis flammea). In The Birds of North America, No. 543 (A. Poole and F. Gill, eds.). The Birds of North America, Inc., Philadelphia, PA.

 
 
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Dictionary. The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.  Read more
Animal Encyclopedia. Grzimek's Animal Life Encyclopedia. Copyright © 2005 by The Gale Group, Inc. All rights reserved.  Read more
Western Bird Guide. Peterson Field Guide to Western Birds, by Roger Tory Peterson. Copyright © 1990 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.  Read more
WordNet. WordNet 1.7.1 Copyright © 2001 by Princeton University. All rights reserved.  Read more
Wikipedia. This article is licensed under the Creative Commons Attribution/Share-Alike License. It uses material from the Wikipedia article "Redpoll" Read more