Subspecies

Passerella iliaca unalaschcensis (Aleutian sooty fox sparrow)

Passerella iliaca unalaschcensis. Photo: (c) Ken Chamberlain, some rights reserved (CC BY-NC)

iNaturalist • Wikipedia

The sooty fox sparrow (Passerella (iliaca) unalaschcensis) contains the darkest-colored taxa in the genus Passerella. It is currently classified as a “subspecies group” within the fox sparrow pending wider-spread acceptance of species status. It has long been suspected to be a separate evolutionary lineage due to morphological distinctness (Swarth 1920), and this is confirmed by analysis of mtDNA sequence and haplotype data (Zink 1994, Zink & Kessen 1999, Zink & Weckstein 2003). This group appears to…

— Wikipedia

Sightings

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