This large and poorly-documented swallow is occasionally considered to be a subspecies of the Caribbean martin, Progne dominicensis.

It breeds semicolonially in sheer cliff faces within pine-oak forests of the Sierra Madre Occidental of western Mexico, nesting in cavities.

[2] Adult males have dark iridescent blue-black feathers with a contrasting white patch covering the belly to the vent, much like the related Caribbean martin.

The range and status of this bird are generally poorly understood, and the species is considered to be rare.

[4] Unlike what has been occurring with related species such as the purple martin and the Cuban martin,[5] competition for nesting sites with invasive European starlings (Sturnus vulgaris) and house sparrows (Passer domesticus) is not likely a significant risk to the Sinaloa martin's population as these invasive species have not become established in this species' breeding range.