Biology

California Towhee (Melozone crissalis) is a species of the class Aves (Birds) in the family Passerellidae (New World Sparro...

Black-bellied Whistling-Duck (Dendrocygna autumnalis) is a species of the class Aves (Birds) in the family Anatidae (Ducks,...

Overview The Yellow-breasted Chat (Icteria virens) is a passerine (order Passeriformes) species of bird...

Zebra Dove (Geopelia striata) is a species of the class Aves (Birds) in the family Columbidae (Pigeons and Doves) and order...

Red Admiral (Vanessa atalanta) is a species of the class Insecta (Insects) in the family Nymphalidae (Brushfooted Butterfli...

Swallow-tailed Gull (Creagrus furcatus) is a species of the class Aves (Birds) in the family Laridae (Gulls, Terns, and Ski...

Commonly observed birds in United States

A list of the domains of life.

A list of the kingdoms of life.