This small hummingbird is restricted to a limited mountain area in Guerrero, southwestern Mexico. Adult males have an orange-rufous crest and green gorget; females lack those ornaments.
Adult males have a fiery orange-rufous crest and an iridescent green gorget, with a green back and rufous-white breast. Females lack the crest and gorget.
The American Bird Conservancy account links this species to the remaining humid mountain-forest patches in Guerrero and identifies loss of that limited forest as a pressure on its habitat.
An extinction-risk assessment has not been added yet.