Worthen's sparrow (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Worthen's sparrow" in English language version.

refsWebsite

Global rank English rank

1iucnredlist.org

88^th place

160^th place

2^nd place

2^nd place

2,179^th place

1,991^st place

1birdconservationalliance.org

low place

low place

birdconservationalliance.org

Bird Conservation Alliance. "Project Saltillo." http://www.birdconservationalliance.org/saltillo/Project_saltillo.cfm

birdlife.org

"Worthen's Sparrow". Bird Life International.

doi.org

BirdLife International. (2017). "Spizella wortheni". IUCN Red List of Threatened Species. 2017: e.T22721182A118141491. doi:10.2305/IUCN.UK.2017-3.RLTS.T22721182A118141491.en. Retrieved 6 July 2024.

iucnredlist.org

BirdLife International. (2017). "Spizella wortheni". IUCN Red List of Threatened Species. 2017: e.T22721182A118141491. doi:10.2305/IUCN.UK.2017-3.RLTS.T22721182A118141491.en. Retrieved 6 July 2024.