Calcarius


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Related to Calcarius: longspurs

Calcarius

 

a genus of birds of the family Emberizidae. The body is 14–16 cm long. The claw of the rear digit is elongate and slightly decurved. Reddish yellow tones predominate in the plumage. There are four species. The Lapland longspur (C. lapponicus) is found in the circumpolar tundra of the USSR. In the winter the bird migrates to the steppes. The Lapland longspur nests on the ground. A clutch contains four to six eggs, which are incubated mainly by the female for 13 or 14 days. Lapland longspurs feed on seeds and insects. The remaining three species of Calcarius live in North America—one in the tundra and two on the prairies and dry plains of western Canada and the United States.

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Mots cles: plectrophane des neiges, Plectrophenax nivalis, plectrophane lapon, Calcarius lapponicus, hybride aviaire, passereau de l'Arctique
The family Calcariidae consists of the genera Cakarius, Rhyncophanes, and Plectrophenax, forming a highly supported evolutionary group or "clade" composed of three sub-clades: a "collared" longspur clade of Calcarius lap-ponicus, ornatus, and pictus; a "snow bunting" clade comprising two Plectrophenax species (nivalis and hyper-boreus); and one Rhyncophanes longspur species (mccow-nii) (Klicka et al:, 2003; Alstrom et al.
First report of a snow bunting x Lapland longspur hybrid
Au sein du refuge, nous avons evalue 1' incidence des nouvcaux (de 0,5 a 1,5 an) et anciens (de 10 a 35 ans)profils sismiques visibles sur l' abondance des passeriformes nicheurs (bruant des pres, Passerculus satidwicliensis; bruant lapon, Calcarius lapponicus; sizerin flamme, Carduelis flammea; bruant hudsonien, Spizella arborea et phalarope a bec large, Phalaropus lobatus) dans la toundra superieure, le polygone a centre concave et les habitats de laiche et de saule.
Effects of seismic lines on the abundance of breeding Birds in the Kendall Island Bird Sanctuary, Northwest Territories, Canada
Snowy owl harfang des neiges Nyctea scandiaca 18 Short-eared owl hibou des marais Asio flammeus 29 Common raven grand corbeau Corvus corax 26 Horned lark alouette hausse- Eremophila 82 col alpestris American pipit pipit d'Amerique Anthus rubescens 100 American tree bruant hudsonien Spizella arborea 88 sparrow Savannah sparrow bruant des pres Passerculus 85 sandwichensis White-crowned bruant a couronne Zontrichia 53 sparrow blanche leucophrys Lapland longspur bruant lapon Calcarius 100 lapponicus Snow bunting bruant des neiges Plectrophenax 26 nivalis Common/hoary sizerin flamme/ Carduelis flammea/ 32 redpoll blanchatre hornemanni TABLE 2.
An Arctic-breeding bird survey on the northwestern Ungava Peninsula, Quebec, Canada
At the comparatively species-rich Dundas Harbour area, a few passerine species were recorded as well, including migrants such as horned lark Eremophila alpestris, northern wheatear Oenanthe oenanthe, lapland longspur Calcarius lapponicus, and snow bunting.
Radar observations of Arctic bird migration at the Northwest Passage, Canada
gustavi - - - - - Lanius cristatus - - +(-) - + Calcarius B B Bo - B
gustavi - - B - Lanius cristatus B - - - Calcarius B B B B
Birds of the Indigirka River Delta, Russia: historical and biogeographic comparisons
The most common birds nesting on the plains are snow geese, lapland longspurs Calcarius lapponicus, and American golden-plovers Pluvialis dominica.
Lapland Longspur Calcarius lapponicus (French: Bruant lapon; Inuktitut: Kowlegak or Narsarmiutaq): Common breeder.
Birds of Bylot Island and adjacent Baffin Island, Northwest Territories, Canada, 1979 to 1997

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