The Rivoli’s Hummingbird breeds from southeastern Arizona and southwestern New Mexico through much of Mexico and Central America. There may also be a small breeding population in the Chisos Mountains of western Texas. In the U.S. the species is mostly migratory, with small numbers overwintering in low mountain canyons in AZ and NM. Outside of the U.S. Rivoli’s Hummingbird is a year-round resident throughout its range (Powers et al. 2020).
Rivoli’s Hummingbird is accidental in Montana and was first detected in the state in 2019.
Direct Evidence of Breeding
Indirect Evidence of Breeding