Animalia > Chordata > Aves > Passeriformes > Emberizidae > Aimophila > Aimophila ruficeps

Aimophila ruficeps (Rufous-crowned Sparrow)

Synonyms: Ammodramus ruficeps (homotypic)
Language: Spanish

Wikipedia Abstract

The rufous-crowned sparrow (Aimophila ruficeps) is a small American sparrow. This passerine is primarily found across the Southwestern United States and much of the interior of Mexico, south to the transverse mountain range, and to the Pacific coast to the southwest of the transverse range. Its distribution is patchy, with populations often being isolated from each other. Twelve subspecies are generally recognized, though up to eighteen have been suggested. This bird has a brown back with darker streaks and gray underparts. The crown is rufous, and the face and supercilium are gray with a brown or rufous streak extending from each eye and a thick black malar streak.
View Wikipedia Record: Aimophila ruficeps

Infraspecies

Aimophila ruficeps australis
Aimophila ruficeps boucardi
Aimophila ruficeps canescens
Aimophila ruficeps duponti
Aimophila ruficeps eremoeca
Aimophila ruficeps extima
Aimophila ruficeps fusca
Aimophila ruficeps laybournae
Aimophila ruficeps obscura
Aimophila ruficeps pallidissima
Aimophila ruficeps phillipsi
Aimophila ruficeps ruficeps
Aimophila ruficeps rupicola
Aimophila ruficeps sanctorum
Aimophila ruficeps scottii
Aimophila ruficeps simulans
Aimophila ruficeps sororia
Aimophila ruficeps suttoni

EDGE Analysis

Uniqueness Scale: Similiar (0) 
2
 Unique (100)
Uniqueness & Vulnerability Scale: Similiar & Secure (0) 
16
 Unique & Vulnerable (100)
ED Score: 5.05151
EDGE Score: 1.80031
Learn more at EDGE of Existence programme

Attributes

Adult Weight [1]  18.5 grams
Breeding Habitat [2]  Desert scrub
Wintering Geography [2]  Non-migrartory
Wintering Habitat [2]  Desert scrub
Diet [3]  Carnivore (Invertebrates), Granivore
Diet - Invertibrates [3]  50 %
Diet - Seeds [3]  50 %
Forages - Mid-High [3]  20 %
Forages - Understory [3]  20 %
Forages - Ground [3]  60 %
Female Maturity [4]  1 year
Male Maturity [4]  1 year
Clutch Size [5]  4
Clutches / Year [4]  2
Global Population (2017 est.) [2]  2,000,000
Incubation [4]  12 days
Mating Display [6]  Ground display (mostly)
Mating System [6]  Monogamy
Maximum Longevity [4]  3 years

Ecoregions

Protected Areas

Biodiversity Hotspots

Name Location Endemic Species Website
California Floristic Province Mexico, United States No
Madrean Pine-Oak Woodlands Mexico, United States No
Mesoamerica Belize, Costa Rica, El Salvador, Guatemala, Honduras, Mexico, Nicaragua, Panama No

Predators

Crotalus willardi obscurus (New Mexico ridgenose rattlesnake)[7]

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.
♦ 3Hamish 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
♦ 4de 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
♦ 5Jetz 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
♦ 6Terje Lislevand, Jordi Figuerola, and Tamás Székely. 2007. Avian body sizes in relation to fecundity, mating system, display behavior, and resource sharing. Ecology 88:1605
♦ 7POPULATION DYNAMICS OF THE NEW MEXICO RIDGE-NOSED RATTLESNAKE (CROTALUS WILLARDI OBSCURUS) IN THE MADREAN ARCHIPELAGO: A THREATENED SPECIES IN A CHANGING ECOSYSTEM, Mark Allen Davis, Thesis for Degree of Master of Science Colorado State University Fort Collins, Colorado Summer 2008
Ecoregions provided by World Wide Fund For Nature (WWF). WildFinder: Online database of species distributions, ver. 01.06 Wildfinder Database
Biodiversity Hotspots provided by Critical Ecosystem Partnership Fund
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