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Western Scrub Jay

Western Scrub-Jay Aphelocoma californica is split into two species: California Scrub-Jay Aphelocoma californica, which is equivalent to the former eBird group Western Scrub-Jay (Coastal) Aphelocoma californica [californica Group] (subspecies immanis, caurina, oocleptica, californica, cana, obscura, and hypoleuca), and Woodhouse’s Scrub-Jay Aphelocoma woodhouseii, which includes the eBird groups Western Scrub-Jay (Woodhouse’s) Aphelocoma californica [woodhouseii Group] (subspecies nevadae, woodhouseii, texana, grisea, and cyanotis), and Western Scrub-Jay (Sumichrast’s) Aphelocoma californica sumichrasti/remota (subspecies sumichrasti and remota). Change the names of the polytypic group Western Scrub-Jay (Woodhouse’s) Aphelocoma californica [woodhouseii Group] to Woodhouse’s Scrub-Jay (Woodhouse’s) Aphelocoma woodhouseii [woodhouseii Group]; and change the names of the polytypic group Western Scrub-Jay (Sumichrast’s) Aphelocoma californica sumichrasti/remota to Woodhouse’s Scrub-Jay (Sumichrast’s) Aphelocoma woodhouseii sumichrasti/remota.This split is based on “differences in ecology, morphology, genetics, and vocalizations; although the two species do interbreed, the hybrid zone is narrow, and there is evidence for selection against hybrids” (Chesser et al. 2016).
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