Calcarius

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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.

References in periodicals archive ?
savannarum (Gmelin), I O grasshopper sparrow Calamospiza melanocorys Stejneger, I R lark bunting Calcarius lapponicus (Linnaeus), I O Lapland longspur C.
Vegetative features Baird's Chestnut-collared Sparrow Longspur Mean vegetation height (cm) 14-30 15-23 Maximum height (cm) 30-43 unknown Visual obstruction reading (cm) 6-21 6 Forb cover (%) 25 6-18 Shrub cover (%) 1-20 [less than or equal to] 3 Bare ground (%) unknown 1-15 Litter depth (cm) <4 2 Vegetative features Dickcissel Mean vegetation height (cm) 20-98 Maximum height (cm) 150 Visual obstruction reading (cm) 14-82 Forb cover (%) 3-60 Shrub cover (%) [less than or equal to] 11 Bare ground (%) [less than or equal to] 16 Litter depth (cm) [less than or equal to] 5
GS Metals Corp., 3764 Longspur Rd., Pinckneyville, IL 62274.
Little Nigel proudly showed off a Labrador longspur he had winged with a stone; we begged him to let it fly off, to which he happily agreed, as it afforded him the opportunity to catch it again.
of detections All birds 210 American goldfinch Carduelis tristis 6 American robin Turdus migratorius 1 American tree sparrow Spizella arborea 30 Bewick's wren Thryomanes bewickii 2 Dark-eyed junco Junco hyemalis 1 Eastern meadowlark Sturnella magna 5 European starling Sturnus vulgaris 1 Field sparrow Spizella pusilla 6 Harris's sparrow Zonotrichia querula 4 Horned lark Eremophila alpestris 11 Lapland longspur Calcarius lapponicus 1 Loggerhead shrike Lanius ludovicianus 5 McCown's longspur Calcarius mccownii 1 Northern cardinal Cardinalis cardinalis 2 Rufous-crowned sparrow Aimophila ruficeps 5 Red-winged blackbird Agelaius phoeniceus 9 Song sparrow Melospiza melodia 6 Spotted towhee Pipilo maculatus 1 Unknown spp.
Five species were significant indicators of alpine tundra habitat: American Golden-Plover (Pluvialis dominica), American Pipit (Anthus rubescens), Horned Lark (Eremophila alpestris), Smith's Longspur (Calcaras pictus), and Lapland Longspur (Calcaras lapponicus).
Also seen during the Athol-area count was an American kestrel, a hawk seen only one other time by Athol birders during Christmas bird counts; and a Lapland longspur, for only a fourth time.
Traded at 1.24 when it looked as if he would get to Longspur, but it was virtually impossible to make up ground at the track yesterday and he failed to reel in the leader
Ferruginous hawk Northern harrier Greater prairie chicken (NA) Sharp-tailed grouse Ring-necked pheasant Mountain plover (NA) Long-billed curlew Upland sandpiper Barn owl (NA) Burrowing owl Short-eared owl Horned lark Sedge wren Sprague's pipit Bobolink (above) Eastern meadowlark (left) Western meadowlark Dickcissel Lark bunting Savannah sparrow Grasshopper sparrow Baird's sparrow LeConte's sparrow Henslow's sparrow Cassin's sparrow Vesper sparrow McGown's longspur Chestnut-collared longspur *Key: Declining Increasing Stable Insufficient data (NA) For More About Grasslands
The following alternative prey species were regular noncolonial nesters or summer residents within a 10-km inland radius of Pearce Point: Tundra Swan (Cygnus columbianus), Canada Goose (Branta canadensis), Common Eider (Somateria mollissima), Semipalmated Plover (Charadrius semipalmatus), Golden Plover (Pluvialis dominica), Baird's Sandpiper (Calidris bairdii), Pectoral Sandpiper (Calidris melanotos), Horned Lark (Eremophila alpestris), American Pipit (Anthus rubescens), Lapland Longspur (Calcarius lapponicus), and Snow Bunting (Plectrophenax nivalis).
Evidence of a second brood, after successful raising of the first, has not been documented unequivocally in four of those species: Horned Lark Eremophila alpestris (Beason, 1995), American Pipit Anthus rubescens (Hendricks and Verbeek, 2012), Lapland Longspur Calcarius lapponicus (Hussell and Montgomerie, 2002), and Snow Bunting Plectrophenax nivalis (Montgomerie and Lyon, 2011), although two cases of second broods produced by unmarked females were suspected in a seven-year study of Lapland Longspurs at 71.3[degrees]N in Alaska (Custer and Pitelka, 1977).
Godolphin scored with their only runner on the card when the impressive-looking Longspur made it third time lucky under Frankie Dettori in the 1m4f maiden.