Timberline sparrow

The timberline sparrow (Spizella breweri taverneri) is a taxonomically controversial American sparrow. Usually treated as a subspecies of Brewer's sparrow, it is considered a distinct species Spizella taverneri by some authorities.^[who?] While the timberline sparrow recognizably differs in some details, there is little reproductive isolation between the taxa.^{[citation needed]}

Timberline sparrow
Conservation status
Apparently Secure  (NatureServe)
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Aves
Order:	Passeriformes
Family:	Passerellidae
Genus:	Spizella
Species:	S. breweri
Subspecies:	S. b. taverneri
Trinomial name
Spizella breweri taverneri Swarth & Brooks, 1925
Synonyms
Spizella taverneri

When it was still considered a species, it was listed as being of least concern by the IUCN.^[1]