Tim Fitzharris / Grizzly Bear (Ursus arctos horribilis) cub in snow, Idaho

Jack Dykinga / Tributary stream pouring into the Snake River, dawn, Caribou National Forest, Idaho, USA

Tom Vezo / Timber Wolf (Canis lupus) portrait among aspen leaves, Teton Valley, Idaho

Tom Vezo / Arctic Wolf (Canis lupus) portrait of white wolf with ice on its chin, Idaho

Tim Fitzharris / Double rainbow over Boulder Mountains after a storm, Idaho

Michael Quinton / Long-tailed Weasel (Mustela frenata) camouflaged in white winter coat, Idaho

Michael Quinton / Cutthroat Trout (Oncorhynchus clarki) group in spring, Idaho

Michael Quinton / Cutthroat Trout (Oncorhynchus clarki) group in spring, Henry's Lake, Idaho

Michael Quinton / Bobcat (Lynx rufus) kitten yawning while resting on a log in summer, Idaho

Michael Quinton / Bobcat (Lynx rufus) fighting with Muskrat (Ondatra zibethicus) in winter, Idaho. Sequence 2 of 4

Michael Quinton / Bobcat (Lynx rufus) fighting with Muskrat (Ondatra zibethicus) in winter, Idaho. Sequence 1 of 4

Michael Quinton / Canada Goose (Branta canadensis) hatchlings in nest with unhatched eggs, spring, Idaho

Michael Quinton / Mallard (Anas platyrhynchos) female with adopted Canada Goslings (Branta canadensis) in the spring, Idaho

Michael Quinton / Bobcat (Lynx rufus) kitten, resting on a log in the summer, Idaho

Michael Quinton / Bobcat (Lynx rufus) hunting Muskrat (Ondatra zibethicus) in winter, Idaho. Sequence 3 of 4

Michael Quinton / Clark's Nutcracker (Nucifraga columbiana) feeding on Whitebark Pine (Pinus albicaulis) nuts during snowfall in winter, Idaho

Michael Quinton / American Robin (Turdus migratorius) parent feeds grasshopper to chicks in nest cavity at top of a snag, summer, Idaho

Michael Quinton / Bobcat (Lynx rufus) kitten in tall spring grass, Idaho

Michael Quinton / Great Gray Owl (Strix nebulosa) brooding female with chick in nest cavity at top of snag in the summer, Idaho

Michael Quinton / Great Gray Owl (Strix nebulosa) parent with owlets in nest cavity at top of snag, Idaho

Shin Yoshino / Osprey (Pandion haliaetus) carrying branch to nesting site, Earthquake Lake, Idaho

Tim Fitzharris / Phi Kappa Mountain and Summit Creek, Idaho

Tim Fitzharris / Moon over Sawtooth Range, Sawtooth National Recreation Area, Idaho

Tim Fitzharris / Pond reflecting Easely Peak, Sawtooth National Recreation Area, Idaho

Tim Fitzharris / Shrubland and granite formations, Castle Rocks State Park, Idaho

Tim Fitzharris / Boulder Mountains and Summit Creek, Idaho

Tim Fitzharris / Pond reflecting Boulder Mountains, Idaho

Tim Fitzharris / Grizzly Bear (Ursus arctos horribilis) cub in snow, Idaho

Tim Fitzharris / Easely Peak, Sawtooth National Recreation Area, Idaho

Tim Fitzharris / Little Redfish Lake and Sawtooth Range, Sawtooth National Recreation Area, Idaho

Tim Fitzharris / Little Redfish Lake and Sawtooth Range, Sawtooth National Recreation Area, Idaho

Tim Fitzharris / Waterfall, Thousand Springs State Park, Niagara, Idaho

Tim Fitzharris / Snake River, Hagerman Fossil Beds National Monument, Idaho

Tim Fitzharris / Sawtooth Range and Stanley Lake Creek, Idaho

Tim Fitzharris / Granite boulders, Castle Rocks State Park, Idaho

Tim Fitzharris / Granite formations, Castle Rocks State Park, Idaho

Tim Fitzharris / Waterfall, Niagara Springs, Thousand Springs State Park, Idaho

Tim Fitzharris / Waterfall, Niagara Springs, Thousand Springs State Park, Idaho

Tim Fitzharris / Granite pinnacles, Castle Rocks State Park, Idaho

Tim Fitzharris / Easely Peak and Big Wood River, Sawtooth National Recreation Area, Idaho

Michael Quinton / Bald Eagle (Haliaeetus leucocephalus) pair fighting over fish, Idaho

Michael Quinton / Bald Eagle (Haliaeetus leucocephalus) sub-adult grabing dead fish out of water, Idaho

Tim Fitzharris / Wetland and Sawtooth Range, Idaho

Rob Tilley / Fourth of July Lake with reflections, Sawtooth NRA, Idaho, USA

Rob Tilley / Fourth of July Lake with reflections, Sawtooth NRA, Idaho, USA

Rob Tilley / Fence with Sawtooth Mountains behind, Sawtooth NRA, Idaho, USA

Rob Tilley / Fence with Sawtouth Mountains behind, Sawtooth NRA, Idaho, USA

Kirkendall-Spring / Snow over the Curlew National Grasslands, Idaho, USA

Tim Fitzharris / Clouds reflected in river, Salmon River Valley, Idaho

Tim Fitzharris / Phi Kappa Mountain and Summit Creek, Idaho

Tim Fitzharris / Phi Kappa Mountain reflected in river, Idaho

Tim Fitzharris / Easely Peak reflected in Big Wood River, Idaho

Tim Fitzharris / Easely Peak, Boulder Mountains, Idaho

Mark Payne-Gill / Brown bear cooling in snow {Ursus arctos} captive Grand Teton Mtns, Idaho, USA.

Mark Payne-Gill / Brown bear with handler {Ursus arctos} captive, Grand Teton Mountains, USA.

Tom Vezo / Say's phoebe {Sayornis saya} Idaho, USA

Tom Vezo / Broad tailed hummingbird male at feeder {Selasphorus platycercus} Idaho, USA

Tom Vezo / Two Arctic Grey wolves in snow {Canis lupus} captive, Idaho, USA.

Tom Vezo / Common snipe in rain {Gallinago gallinago} Idaho, USA.

Tom Vezo / Short eared owl hunting over grass {Asio flammeus} Idaho, USA

Tom Vezo / Lynx in snow {Lynx lynx} captive, Idaho, USA

Tom Vezo / Long billed curlew {Numenius americanus} Idaho, USA

Tom Vezo / Coyote in deep snow {Canis latrans} captive, Idaho, USA

Tom Vezo / Lynx in snow {Lynx lynx} captive, Idaho, USA

Tom Vezo / Short eared owl {Asio flammeus} Idaho, USA

Tom Vezo / Long billed curlew flying + calling {Numenius americanus} Idaho, USA

Tom Vezo / Lynx in snow {Lynx lynx} captive, Idaho, USA

Mark Payne-Gill / Brown bear in snow {Ursus arctos} captive, Grand Teton Mountains, Idaho, USA.

Tom Vezo / Arctic Grey wolf in snow {Canis lupus} captive, Idaho, USA.

Tom Vezo / Arctic Grey wolf walking through snow {Canis lupus} captive, Idaho, USA.

Tom Vezo / Coyote in deep snow {Canis latrans} captive, Idaho, USA

Tom Vezo / Upper Mesa Falls, Targhee NF, Idaho, USA.

Tom Vezo / Rock wren (Salpinctes obsoletus) Idaho, USA

Tom Vezo / Upper Mesa Falls, Targhee NF, Idaho, USA.

Mark Payne-Gill / Grey wolf {Canis lupus} feeding on Elk carcass, Idaho, USA. captive

Mark Payne-Gill / Brown bear cooling in snow {Ursus arctos} captive Grand Teton Mtns, Idaho, USA.

Tom Vezo / Common snipe {Gallinago gallinago} Idaho, USA

Tom Vezo / Savannah sparrow {Passerculus sandwichensis} Idaho, USA

Tom Vezo / Rainbow at Upper Mesa Falls, Targhee NF, Idaho, USA.

Tom Vezo / Calliope hummingbird female {Stellula calliope} Idaho, USA.

Tom Vezo / Arctic Grey wolf in snow {Canis lupus} captive, Idaho, USA.

Tom Vezo / Arctic Grey wolf walking through snow {Canis lupus} captive, Idaho, USA.

Tom Vezo / Arctic Grey wolf portrait in snow {Canis lupus} captive, Idaho, USA.

Tim Fitzharris / Boulder Mountains and Summit Creek dusted with snow, Idaho

Tim Fitzharris / Panoramic view of the Pioneer Mountains, Idaho

Tim Fitzharris / Phi Kappa Mountain reflected in Summit Creek, Idaho

Tom Vezo / Common Snipe (Gallinago gallinago) resting on one leg on snow-covered post, Teton Valley, Idaho

Tom Vezo / Timber Wolf (Canis lupus) portrait among Aspen trees, Teton Valley, Idaho

Tom Vezo / Timber Wolf (Canis lupus) portrait among Aspen trees, Teton Valley, Idaho

Tom Vezo / Timber Wolf (Canis lupus) portrait peering out from behind a tree, Teton Valley, Idaho

Tom Vezo / Timber Wolf (Canis lupus) portrait, Teton Valley, Idaho

Tom Vezo / Timber Wolf (Canis lupus) portrait amid Aspen leaves, Teton Valley, Idaho

Tom Vezo / Timber Wolf (Canis lupus) portrait, Teton Valley, Idaho

Tom Vezo / Timber Wolf (Canis lupus) standing in meadow, Teton Valley, Idaho

Tom Vezo / Timber Wolf (Canis lupus) adult howling, Teton Valley, Idaho

Tom Vezo / Timber Wolf (Canis lupus) adult howling, Teton Valley, Idaho