Tim Fitzharris / Roseate Spoonbill (Platalea ajaja) wading, North America

Tim Fitzharris / Double-crested Cormorant (Phalacrocorax auritus) drying its wings, North America

Tim Fitzharris / Osprey (Pandion haliaetus) flying, North America

Michael Quinton / Great Gray Owl (Strix nebulosa) parent protecting eggs in nest, North America

Michael Quinton / Great Gray Owl (Strix nebulosa) incubating eggs on nest, North America

Tim Fitzharris / Common Garter Snake (Thamnophis sirtalis) with extended tongue, very common snake, North America

Gerry Ellis / Deer Mouse (Peromyscus maniculatus), North and Central America

Sumio Harada / Mountain Goat (Oreamnos americanus) mother and baby, Rocky Mountains, North America

Sumio Harada / Red Squirrel (Tamiasciurus hudsonicus) mother returning to her 35 day old babies in nest to nurse them, Rocky Mountains, North America

Sumio Harada / Red Squirrel (Tamiasciurus hudsonicus) mother nursing her 19 day old babies in nest in tree trunk, Rocky Mountains, North America

Sumio Harada / Red Squirrel (Tamiasciurus hudsonicus) mother nursing her 15 day old babies in nest, Rocky Mountains, North America

Thomas Mangelsen / Sandhill Crane (Grus canadensis) trio flying, North America