Green and Black Poisin Dart Frog
A green and black poison dart frog on a heliconia flower in Costa Rica.
A bull bison in autumn in Yellowstone National Park.
Oneonta Gorge in the Columbia River Gorge in Oregon.
Winter Storm Over the Coast Range
A winter rain storm settles in over the Coast Range in western Oregon.
Cottonwood Trees in Winter Fog
Cottonwood trees emerge from ground fog in winter at Baskett Slough Nationa Wildlife Refuge in Oregon.
A snowy hillside in Yellowstone National Park in winter.
A pair of bare-throated Tiger-herons standing in a docked boat in Costa Rica.
Sunset on the Beach
Sunset is reflected in the wet sand on Cape Lookout Beach on the Oregon Coast.
Beverly Beach Sunset
Sunset on Beverly Beach on the Oregon coast in April.
Sunrise on Baskett Slough National Wildlife Refuge, Oregon in January.
Canadian Rocky Mountains
The Canadian Rocky Mountains in the northern end of Banff National Park in Alberta.
Lower Klamath National Wildlife Refuge
A pond and foothills at Lower Klamath National Wildlife Refuge in norther California in February.
Lake Louise in Banff National Park, Alberta, Canada.
Zebras at the Mara River
Zebras contemplate crossing the Mara River in the Masai Mara of Kenya.
Wild Carrot Seed Head
The seed head of a wild carrot.
Anhinga with Rainbow Bass
An anhinga with a freshly caught rainbow bass in his beak on the Rio Frio in Costa Rica.
A young two-toed sloth resting in a tree in Costa Rica.
A green honeycreeper perched on a branch in Costa Rica.
A summer tanager perched on a limb in Costa Rica.
Blunt-headed Tree Snake
A blunt-headed tree snake photographed at night in Costa Rica. The blur is from the ambient exposure with a flashlight and the sharp snake image was created when the camera flash fired.
Green Parrot Sanke
A green parrot snake or green tree snake in Costa Rica.
A male Magnificent hummingbird in Costa Rica.
A female Magnificent hummingbird comes to a fuschia flower in Costa Rica.
An ice-covered bison in an autumn snow storm in Yellowstoen National Park.
An elk cow on a snowy morning near Lake Minnewanka in Banff National Park in Alberta,Canada.
Sun beams pour through the trees on Highway 101 south of Crescent City, California in the redwoods.
A black-legged kittiwake in flight
A wet baby African elephant sucks her trunk as she follows her mother after a bath in the Ewaso Ng'iro River in Samburu in Kenya.
A red dahlia in a dahlia farm in Canby, Oregon.
An approaching storm on Rialto Beach in Olympic National Park in Washington state.
Spectacled Caiman 091203_490
A spectacled caiman on the Cano Negro River in Costa Rica.
A basilisk lizard perches on a branch in the Rio Frio River in northern Costa Rica. If he spots an insect like a butterfly he will run across the top of the water to catch it, giving him the nickname "The JesusChrist Lizard".
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An immature black-crowned night-heron perched on a tree buttress above the Rio Frio River in Cano Negro in Costa Rica in December.
Great Horned Owl
A great Horned owl in a cottonwood tree at Malheur National Wildlife Refuge in southeastern Oregon in autumn.
Osprey Nest 080413_138
An osprey hovers briefly above its nest with grasses in it talons as his matewaits to help with the remodelling. Photographed at Snag Boat Bend National Wildlife Refuge in Oregon.