Here is some information that will help you identify the female Rufous Hummingbird. The written information for this post comes from the Cornell Lab of Ornithology. I am also including a photo of a female Rufous Hummingbird to help you lean to identify this bird.
The female of this species is green above with rufous-washed flanks, rufous patches in the green tail, and often a spot of orange in the throat.
Rufous Hummingbirds choose to breed in open areas, yards, parks, and forests up to tree line level. On their migratory path they will pass through mountain meadows which are as high as 12,600 feet where nectar-rich, tubular flowers are blooming. Their winter habitat is in Mexico and includes shrubby openings and oak-pine forests at middle to high elevation.