EN
Worthen's Sparrow Spizella wortheni



Family: Passerellidae (New World sparrows)

Authority: Ridgway, 1884

Red List Category

Criteria: C2a(ii)

Click here for more information about the Red List categories and criteria

Justification of Red List category
This species has a very small and declining population, and fledging success is very low. It is therefore listed as Endangered.



Population size: 250-999

Population trend: Decreasing

Extent of occurrence (breeding/resident): 13,900 km2

Country endemic: Yes

Attributes
Land-mass type - continent
Realm - Nearctic
Realm - Neotropical
IUCN Ecosystem -- Terrestrial biome

Recommended citation
BirdLife International (2017) Species factsheet: Spizella wortheni. Downloaded from http://www.birdlife.org on 14/12/2017. Recommended citation for factsheets for more than one species: BirdLife International (2017) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 14/12/2017.