Biology
Featured Species
White-tailed Kite (Elanus leucurus)
Featured Content
Fiery Skipper (Hylephila phyleus) is a species of the class Insecta (Insects) in the family Hesperiidae (Skippers) and orde...
Pied-billed Grebe (Podilymbus podiceps) is a species of the class Aves (Birds) in the family Podicipedidae (Grebes) and ord...
Chestnut-backed Chickadee (Poecile rufescens) is a species of the class Aves (Birds) in the family Paridae (Tits, Chickadee...
Common Murre (Uria aalge) is a species of the class Aves (Birds) in the family Alcidae (Auks, Murres, and Puffins) and orde...
Gila Woodpecker (Melanerpes uropygialis) is a species of the class Aves (Birds) in the family Picidae (Woodpeckers) and ord...
Overview The Swan Goose (Anser cygnoides) is a species of waterfowl (family Anatidae) in the order Anse...
Recent Content
Sterna forsteri
Dryocopus pileatus
Alopochen aegyptiaca
Pycnonotus jocosus
Melanitta americana
Pyrocephalus rubinus
Podiceps auritus
Eremophila alpestris
Tachycineta bicolor
Featured Illustrations
Common Pochard
Royal Spoonbill
Northern Parula
Galleries
Gallery of Butterflies
Gallery of California Plants
Gallery of California Wildflowers
Gallery of Dragonflies
Gallery of Frogs
Gallery of Hummingbirds
Gallery of Woodpeckers
Lists
Commonly observed birds in United States
A list of the domains of life.
A list of the kingdoms of life.
