Welcome back, little mountain bluebird. Although this bright fellow may be enduring the last of this year"s snow in Yellowstone National Park, his presence means winter will soon be ending. The bluebird is a symbol of happiness and a welcome sign of spring in many cultures. Soon other migratory birds will arrive in the Greater Yellowstone Ecosystem—an 18-million-acre tract that includes Grand Teton National Park and surrounding national forests. It"s the world"s largest intact ecosystem in the northern temperate zone. What exactly does that mean? Since wolves were reintroduced to Yellowstone 25 years ago, all the animal species that were first documented by European explorers can still be found here.
Hello, harbinger of spring
Today in History
More Desktop Wallpapers:
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Cuban tody, Alejandro de Humboldt National Park, Cuba
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Kluane National Park
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Groundhog Day
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Gespensterwald, Nienhagen, Germany
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Honoring the rangers on World Ranger Day
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Chilling out in the Arctic
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It s time to fall back
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World Rainforest Day
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Te Rewa Rewa Bridge near New Plymouth, New Zealand
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Room at the top?
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Svolvaer, Lofoten Islands, Norway
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Sand, sun, and sk8ers
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What s going on in this sky?
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Sgwd yr Eira waterfall, Bannau Brycheiniog National Park, Wales
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Red fox in the Netherlands
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Zion National Park, Utah
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Giant kelp in the Channel Islands National Marine Sanctuary
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High above the reef
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Indigenous Peoples Day
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Installation art turns heads
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International Mountain Day
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Black-naped monarch
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1, 1, 2, 3: It s Fibonacci Day!
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Spire Cove in Kenai Fjords National Park, Seward, Alaska
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Emerald Bay and Fannette Island, Lake Tahoe, California
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Happy Halloween!
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Eurasian red squirrel in Northumberland, England
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Tough turf
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International Archaeology Day
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Taking the scenic route to Sturgis
Bing Wallpaper Gallery

