Finley says he never has seen a young Hummingbird fall out of its nest because they test out their flying capacity by trying the wings while holding tight to the nest rim. The wings at first moved slowly, gradually working up speed until the lift would have carried them aloft if the feet had been released. This practice is executed many times until they are wing-perfect and they leave home under full control.
Central and southern California, south; eastward to southern Arizona.