Santa Cruz Island, California, USA.
May form a superspecies with A. californica and A. coerulescens, and the three previously treated as conspecific; present species derived from coastal clade of former. Relationships of this group with A. ultramarina and A. unicolor yet to be resolved, as recent studies indicate that divergence of these three major lineages within the genus was apparently rapid, leading to conflict among genetic markers. Monotypic.
Santa Cruz I (SW California), in SW USA.
Food and feeding
Status and conservation
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