This hummingbird lives in dry forest on Mexico's Pacific coast. The study argues that plumage, voice, and range together distinguish it from the related Broad-billed Hummingbird. Their summer ranges are separate, but they may meet in winter in the Balsas Basin.
Its breast and underparts are bluer than those of the related Broad-billed Hummingbird (Cynanthus latirostris), a plumage feature used to distinguish the taxa.
It occurs in dry forests of the lowlands and submontane slopes. The paper reports separate summer ranges from the related species, with possible contact in winter in the Balsas Basin.
An extinction-risk assessment has not been added yet.