The Blue-throated Hummingbird is the largest in the United States (4.75 to 5.25 inches). The male has a dark head with prominent white eye stripes and a white stripe at the chin. He has a cerulean blue or cobalt blue throat. His crown and the back of his head is grass green and gets darker color down the back. He has a large black and white tail. His underparts are ash gray. The female has grass green upperparts and is all gray below.
Where you might see them
The Sky Island Mountain ranges of western Texas, southern New Mexico, and southeastern Arizona.
The Blue-throated Hummingbird is up to three times heavier than the more common Ruby-throated or Black-chinned Hummingbirds.
The Blue-throated Hummingbird spends most of its time near Canyon streams.