Calcariidae – Longspurs & Snow Buntings
Calcariidae is a small family of passerine birds. It includes longspurs and snow buntings. There are six species in three genera worldwide, found mainly in North America and Eurasia. They are migratory and can live in a variety of habitats including grasslands, prairies, tundra, mountains, and beaches.
Members of Calcariidae range in mass from around 20 grams (Chestnut-collared Longspur) to around 42 grams (McKay’s Bunting). Species have brown, grey, and white plumage, with dark brown or black irises. The legs of the snow bunting and McKay’s bunting are dark grey or black, while legs of other species in the family range from dull pink to brown.
DNA sequencing has revealed that this small group of 6 species formally lumped in with the Emberizidae is actually a family in its own right, the Calcariidae; the members of which are set out below:
McCown’s Longspur Calcarius mccownii
Lapland Longspur Calcarius lapponicus
Smith’s Longspur Calcarius pictus
Chestnut-collared Longspur Calcarius ornatus
Snow Bunting Plectrophenax nivalis
McKay’s Bunting Plectrophenax hyperboreus
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Chestnut-collared Longspur Calcarius ornatus
IUCN Species StatusThe population is estimated to be c.3,000,000 individuals (Partners in Flight Science Committee 2013). -
Chestnut-collared Longspur Calcarius ornatus
Species AccountThe chestnut-collared longspur (Calcarius ornatus) is a small ground-feeding bird from the family Calcariidae which also contains the longspurs. -
Chestnut-collared Longspur Calcarius ornatus
Cornell Species AccountThe black belly of the breeding male Chestnut-collared Longspur makes it stand out when proclaiming its territory on its short-grass prairie home. In other seasons the male is as drab and sparrow-like as the female. -
Chestnut-collared Longspur Calcarius ornatus
Species AccountSound archive and distribution map. -
Lapland Longspur Calcarius lapponicus
Species AccountSound archive and distribution map. -
Lapland Longspur Calcarius lapponicus
Species AccountThe Lapland longspur (Calcarius lapponicus), also known as the Lapland bunting, is a passerine bird in the longspur family Calcariidae, a group separated by most modern authors from the Fringillidae (Old World finches). -
Lapland Longspur Calcarius lapponicus
Cornell Species AccountA common songbird of the Arctic tundra, the Lapland Longspur winters in open fields across much of the United States and southern Canada. -
McCown's Longspur Calcarius mccownii
Species AccountThe McCown's longspur (Rhynchophanes mccownii) is a small ground-feeding bird from the family Calcariidae, which also contains the longspurs and snow buntings. -
McCown's Longspur Calcarius mccownii
Cornell Species AccountA songbird of barren ground, the McCown's Longspur is found in shortgrass prairie and overgrazed pastures of the Great Plains. -
McCown's Longspur Calcarius mccownii
Species AccountSound archive and distribution map. -
McCown's Longspur Calcarius mccownii
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McKay's Bunting Plectrophenax hyperboreus
IUCN Species StatusThis species has been downlisted from Near Threatened because its population is estimated to be larger than previously thought and because there are not thought to be any plausible threats that could cause a rapid or very rapid decline in a short time period. -
McKay's Bunting Plectrophenax hyperboreus
Species AccountSound archive and distribution map. -
McKay's Bunting Plectrophenax hyperboreus
Species AccountMcKay's bunting (Plectrophenax hyperboreus) is a passerine bird in the longspur family Calcariidae. It is most closely related to the snow bunting (P. nivalis). -
Smith's Longspur Calcarius pictus
Species AccountSound archive and distribution map. -
Smith's Longspur Calcarius pictus
Species AccountThe Smith's longspur (Calcarius pictus) is a small ground-feeding bird from the family Calcariidae, which also contains the longspurs. -
Smith's Longspur Calcarius pictus
Cornell Species AccountA brightly patterned songbird of the subarctic tundra, the Smith's Longspur winters only in the center of the United States. -
Snow Bunting Plectrophenax nivalis
Species AccountSound archive and distribution map. -
Snow Bunting Plectrophenax nivalis
Species AccountThe snow bunting (Plectrophenax nivalis), sometimes colloquially called a snowflake, is a passerine bird in the family Calcariidae -
Snow Bunting Plectrophenax nivalis
RSPB Species AccountSnow buntings are large buntings, with striking `snowy' plumages. Males in summer have all white heads and underparts contrasting with a black mantle and wing tips.
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Number of bird species: 6