Calliope hummingbird (male)
Stellula calliope

Size: 3 inches
Overall Color: green and whitish
Occurrence: widespread
Diet: insects, nectar, spiders
Nest: cup in tree
Field Identification: red iridescent streaked throat and gorget, smallest N. Amer. bird, white breast and belly
Season: summer

Kingdom: Animalia (Animals)
Phylum: Chordata (hollow nerve cord)
Subphylum: Vertebrata (backbone)
Class: Aves (Birds)
Order: Apodiformes
Family: 41 Trochilidae (hummingbirds)
Genus: Stellula
Species: calliope