Animalia > Chordata > Aves > Passeriformes > Calcariidae > Calcarius > Calcarius pictus

Calcarius pictus (Smith's Longspur)

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Wikipedia Abstract

The Smith's longspur (Calcarius pictus) is a small ground-feeding bird from the family Calcariidae, which also contains the longspurs. These birds have short cone-shaped bills, streaked backs, and dark tails with white outer retrices. In breeding state plumage (mostly formed by worn basic plumage), the male has a pumpkin-orange throat, nape, and underparts contrasting with an intricate black-and-white face pattern. The white lesser coverts are quite pronounced on a male in spring and early summer. Females and immatures have lightly streaked buffy underparts, dark crowns, brown wings with less obvious white lesser coverts, and a light-colored face. The tail is identical at all ages.
View Wikipedia Record: Calcarius pictus

EDGE Analysis

Uniqueness Scale: Similiar (0) 
5
 Unique (100)
Uniqueness & Vulnerability Scale: Similiar & Secure (0) 
26
 Unique & Vulnerable (100)
ED Score: 10.5333
EDGE Score: 2.44524
Learn more at EDGE of Existence programme

Attributes

Adult Weight [1]  26 grams
Birth Weight [3]  3 grams
Female Weight [5]  25 grams
Male Weight [5]  28 grams
Weight Dimorphism [5]  12 %
Breeding Habitat [2]  Arctic tundra
Wintering Geography [2]  Central U.S.
Wintering Habitat [2]  Temperate grasslands, Agricultural
Diet [4]  Carnivore (Invertebrates), Granivore
Diet - Invertibrates [4]  50 %
Diet - Seeds [4]  50 %
Forages - Understory [4]  20 %
Forages - Ground [4]  80 %
Female Maturity [3]  1 year
Male Maturity [3]  1 year
Clutch Size [6]  4
Clutches / Year [3]  1
Global Population (2017 est.) [2]  75,000
Incubation [3]  12 days
Mating System [8]  Monogamy
Maximum Longevity [3]  5 years
Migration [7]  Intracontinental

Ecoregions

Protected Areas

Prey / Diet

Range Map

External References

NatureServe Explorer

Citations

Attributes / relations provided by
♦ 1Nathan P. Myhrvold, Elita Baldridge, Benjamin Chan, Dhileep Sivam, Daniel L. Freeman, and S. K. Morgan Ernest. 2015. An amniote life-history database to perform comparative analyses with birds, mammals, and reptiles. Ecology 96:3109
♦ 2Partners in Flight Avian Conservation Assessment Database, version 2017. Accessed on January 2018.
♦ 3de Magalhaes, J. P., and Costa, J. (2009) A database of vertebrate longevity records and their relation to other life-history traits. Journal of Evolutionary Biology 22(8):1770-1774
♦ 4Hamish Wilman, Jonathan Belmaker, Jennifer Simpson, Carolina de la Rosa, Marcelo M. Rivadeneira, and Walter Jetz. 2014. EltonTraits 1.0: Species-level foraging attributes of the world's birds and mammals. Ecology 95:2027
♦ 5Briskie, J.V., 1993. Smith’s Longspur (Calcarius pictus). In A. Poole, P. Stettenheim and F. Gill, editors. The Birds of North America, No. 34. Academy of Natural Sciences, Philadelphia, Pennsylvania, and American Ornithologists' Union, Washington, D.C., USA.
♦ 6Jetz W, Sekercioglu CH, Böhning-Gaese K (2008) The Worldwide Variation in Avian Clutch Size across Species and Space PLoS Biol 6(12): e303. doi:10.1371/journal.pbio.0060303
♦ 7Myers, P., R. Espinosa, C. S. Parr, T. Jones, G. S. Hammond, and T. A. Dewey. 2006. The Animal Diversity Web (online). Accessed February 01, 2010 at animaldiversity.org
♦ 8Terje Lislevand, Jordi Figuerola, and Tamás Székely. 2007. Avian body sizes in relation to fecundity, mating system, display behavior, and resource sharing. Ecology 88:1605
♦ 9Jorrit H. Poelen, James D. Simons and Chris J. Mungall. (2014). Global Biotic Interactions: An open infrastructure to share and analyze species-interaction datasets. Ecological Informatics.
Ecoregions provided by World Wide Fund For Nature (WWF). WildFinder: Online database of species distributions, ver. 01.06 Wildfinder Database
Abstract provided by DBpedia licensed under a Creative Commons License
Species taxanomy provided by GBIF Secretariat (2022). GBIF Backbone Taxonomy. Checklist dataset https://doi.org/10.15468/39omei accessed via GBIF.org on 2023-06-13; License: CC BY 4.0