Though formerly resident on Isla Guadalupe, an island off the western coast of Mexico, it appears to have been extirpated there, with the last known record of the species on the island dating from 1971.
Aínda que antes era residente da illa Guadalupe, na costa oeste de México, agora parece que está extinguido alí, e o último rexistro coñecido desta especie na illa data de 1971.