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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The story of a rediscovered redwood
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Cherry blossoms at the National Mall, Washington, DC
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Manarola, Cinque Terre National Park, Liguria, Italy
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Spring comes to Glacier National Park
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Tibetan New Year
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It s not always sunny in Abu Simbel…
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Flamenco dancers
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A seabird gets schooled
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Longs Peak, Rocky Mountain National Park
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Banggai cardinalfish with sea anemone
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Boundary Waters Canoe Area Wilderness
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Ingenuity in action on the Santa Monica Pier
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Ocracoke Lighthouse on Ocracoke Island, North Carolina
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Gdańsk on the banks of the Motława, Poland
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Veterans Day
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Sydney Harbour, New South Wales, Australia
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National Mountain Climbing Day
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The perfect canvas for an ancient text
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Mesquite Flat Sand Dunes in Death Valley National Park, California
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Welcome to the pack
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Independence Day of the Bahamas
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Ukrainian Independence Day
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Celebrating Panama s independence
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Fight for your lefts
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Computer Science EDU Week
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Perfect timing
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Let’s go mothing
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National Park Week: Olympic National Park, Washington
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World Donkey Day
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Bathing boxes at Brighton Beach, Australia
Bing Wallpaper Gallery

