It???s male makes a whirring, mechanical sound.Leuschner also shared his favorite places to see hummingbirds and other birds, which I???ve written up in Favorite Birding Spots in Inland Southern California.Sphinx moths often get confused for hummingbirdsFiled Under: Birds Tagged With: hummingbird feeder tips, Inland Empire hummingbirds, Kurt Leuschner, Southern California hummingbirdsComments Anne