Crossbill Feeding on Fir Cones

Chasing a Snack, Red Fox

Adelie Penguins in Hope Bay, Antarctica

Antarctic Sailing

Colors of Winter, Lake Tahoe

Winter Sunrise Over Big Thompson River, Rocky Mountain National Park, Colorado

Twilight Over South Tufa Grove, Mono Lake, California

Vaughn's Creek, Edwin Warner Park, Nashville, Tennessee

Ice Formations in Illinois Canyon, Starved Rock State Park, Illinois

Polar Bear, Svalbard, Norway

Mount Robson and Berg Lake, Canadian Rockies

Frosted Farmland, LaSalle County, Illinois

Mount Thamserku, Nepal

Red Fox in Winter

Statuary Walk, Central Park, New York City, New York

Hallstatt in Winter, Austria

Ice-Breaker, Antarctica

All the Comforts of Home

Selkirk Mountains, British Columbia, Canada

Swimming Emperor Penguins, Antarctica

Icebergs, Cook Inlet, Alaska

Staubbach Waterfall, Lauterbrunnen, Switzerland

Female Northern Cardinal on a Snowy Pine

Neuschwanstein Castle in Winter, Bavaria, Germany

Yoho National Park, British Columbia

Central Park in Winter, New York City, New York

Icebreaking McMurdo Sound, Antarctica

Winter Haven, Germany

Avalanche! Denali National Park, Alaska

Anchorage Skyline Evening, Alaska

Unexpected Guests, Polar Bears

Eroded Iceberg in the Lemaire Channel, Antarctica

Antarctic Travels

Mount Rainier Reflected in Tipsoo Lake, Washington

Harpeth River Winter Sunrise , Williamson County, Tennessee