Range. - Mexico, north in summer to southern Arizona where they breed at high elevations in the Huachuca Mountains.

This is one of the most gorgeous of the Hummers having the crown a violet purple color, and the throat brilliant green. This species saddles its nest upon branches often at heights of 20 or 30 feet from the ground. They are made of plant down and generally decorated with lichens on the outside, similar to nests of the Ruby-throat. The two white eggs measure .65 x .40.