Animalia > Chordata > Aves > Passeriformes > Emberizidae > Spizella > Spizella wortheni

Spizella wortheni (Worthen's Sparrow)

Synonyms: Spizella wortheni wortheni
Language: Spanish

Wikipedia Abstract

Worthen's sparrow (Spizella wortheni) is a species of American sparrow that is endemic to northeastern Mexico. It was first described by Robert Ridgway in 1884 and named for the American naturalist Charles K. Worthen. This small bird has been listed as endangered by the IUCN since 1994.
View Wikipedia Record: Spizella wortheni

Infraspecies

Spizella wortheni browni

Endangered Species

Status: Endangered
View IUCN Record: Spizella wortheni

EDGE Analysis

Uniqueness Scale: Similiar (0) 
2
 Unique (100)
Uniqueness & Vulnerability Scale: Similiar & Secure (0) 
48
 Unique & Vulnerable (100)
ED Score: 4.78813
EDGE Score: 3.83525
Learn more at EDGE of Existence programme

Attributes

Adult Weight [1]  12.5 grams
Breeding Habitat [2]  Chihuahuan grasslands
Wintering Geography [2]  Non-migrartory
Wintering Habitat [2]  Chihuahuan grasslands
Diet [3]  Carnivore (Invertebrates), Granivore
Diet - Invertibrates [3]  30 %
Diet - Seeds [3]  70 %
Forages - Ground [3]  100 %
Clutch Size [4]  4
Clutches / Year [1]  3
Fledging [1]  10 days
Incubation [1]  12 days
Maximum Longevity [1]  10 years
Female Maturity [1]  0 years 12 months
Male Maturity [1]  1 year

Ecoregions

Name Countries Ecozone Biome Species Report Climate Land
Use
Central Mexican matorral Mexico Nearctic Deserts and Xeric Shrublands
Chihuahuan desert Mexico, United States Nearctic Deserts and Xeric Shrublands
Meseta Central matorral Mexico Nearctic Deserts and Xeric Shrublands
Tehuacán Valley matorral Mexico Neotropic Deserts and Xeric Shrublands

Alliance for Zero Extinction (AZE) Sites

Name  Location   Map   Climate   Land Use 
Pradera de Tokio Mexico

Range Map

External References

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
♦ 4Jetz 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
Ecoregions provided by World Wide Fund For Nature (WWF). WildFinder: Online database of species distributions, ver. 01.06 Wildfinder Database
AZE sites provided by Alliance for Zero Extinction (2010). 2010 AZE Update.
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