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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Happy Boxing Day!
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Riding the bore tide at Turnagain Arm, Cook Inlet, Alaska
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First day of autumn
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An island for the birds
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Summer solstice
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Take the Stairs Day
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Here there be dragons
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Bisti/De-Na-Zin Wilderness, New Mexico
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A big place to shop small
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Freeze frame
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Village of Saranac Lake, New York
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Christmas market in Leipzig, Germany
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Bavarian Forest National Park, Germany
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Lake Bled, Slovenia
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Taking the scenic route
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World Laughter Day—it s a hoot
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St. Joseph North Pier Inner and Outer Lights, Michigan
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Rock House in Hocking Hills State Park, Ohio
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Rock of ages
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A wild and scenic scene
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Wooden path to Kennedy Lake, Vancouver Island, Canada
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A universe underground
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Happy Valentines Day!
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Salzburg, Austria
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Celebrating Labor Day
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Corkscrew Swamp Sanctuary
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Bringing together history and technology
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Endangered Species Day
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National Park Week: Guadalupe Mountains National Park
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An Alpine fairy-tale castle
Bing Wallpaper Gallery

