Biology

Featured Species

Ferruginous Hawk (Buteo regalis)

Ferruginous Hawk - Adult (light morph)

Recent Content

Bordered Patch - Adult
Bordered Patch

Chlosyne lacinia

Scaled Quail - Adult
Scaled Quail

Callipepla squamata

Bronzed Cowbird - Adult male
Bronzed Cowbird

Molothrus aeneus

Rufous-crowned Sparrow - Adult
Rufous-crowned Sparrow

Aimophila ruficeps

Painted Bunting - Female/immature
Painted Bunting

Passerina ciris

Bridled Titmouse - Adult
Bridled Titmouse

Baeolophus wollweberi

Hairy Woodpecker - Adult male
Hairy Woodpecker

Dryobates villosus

Pyrrhuloxia - Adult female
Pyrrhuloxia

Cardinalis sinuatus

Zone-tailed Hawk - Adult
Zone-tailed Hawk

Buteo albonotatus

Featured Content

Cassin's Finch - Adult male
Cassin's Finch

Cassin's Finch (Haemorhous cassinii) is a species of the class Aves (Birds) in the family Fringillidae (Finches, Euphonias,...

Juniper Titmouse - Adult
Juniper Titmouse

The Juniper Titmouse (Baeolophus ridgwayi) is a passerine (order Passeriformes) species of bird (class...

Northern Harrier - Adult male
Northern Harrier

Northern Harrier (Circus hudsonius) is a species of the class Aves (Birds) in the family Accipitridae (Hawks, Eagles, and K...

Yellow-headed Blackbird - Male
Yellow-headed Blackbird

Yellow-headed Blackbird (Xanthocephalus xanthocephalus) is a species of the class Aves (Birds) in the family Icteridae (Tro...

Common Ringlet - Adult
Common Ringlet

Common Ringlet (Coenonympha tullia) is a species of the class Insecta (Insects) in the family Nymphalidae (Brushfooted Butt...

Pig's Ear - Pig's Ear
Pig's Ear

Pig's Ear (Cotyledon orbiculata) is a species of the class Magnoliopsida in the family Crassulaceae (Stonecrops) and order ...

Photo Galleries

Gallery of Butterflies
Gallery of Butterflies
Gallery of Dragonflies
Gallery of Dragonflies
Gallery of Frogs
Gallery of Frogs
Gallery of Hummingbirds
Gallery of Hummingbirds
Gallery of Woodpeckers
Gallery of Woodpeckers

Lists

Common Birds of United States of America - United States of America
Common Birds of United States of America

Commonly observed birds in United States of America

List of Domains of Life -
List of Domains of Life

A list of the domains of life.

List of Kingdoms of Life -
List of Kingdoms of Life

A list of the kingdoms of life.