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 Mother s Day!
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And to think that I saw it in Cappadocia
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Llama Day
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Fannette Island, Lake Tahoe
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An island in the Highlands
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Staring down winter
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World Book Day
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A stroll above the stratosphere
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Join the parade for World Elephant Day
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World Children s Day
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Who s there? The largest owl in the world
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Entoloma hochstetteri mushroom at Lake Mahinapua, New Zealand
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World Sea Turtle Day
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Canada s $20 view
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Aw shucks, it’s oyster season in Galway
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Sanxiantai Dragon Bridge in Taitung, Taiwan
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Blue-footed booby, Galápagos Islands
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3, 2, 1 … Happy New Year!
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Longtailed widowbird at Rietvlei Nature Reserve, South Africa
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Moody skies over Valletta
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Leaves of Grass
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World Nature Conservation Day
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A horse of many colors
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Don t forget—it’s World Elephant Day
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World Space Week begins
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International Lighthouse and Lightship Weekend
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Penguin Awareness Day
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In the Most Serene Republic
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The moth wonderful time of the year
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Endangered Species Act
Bing Wallpaper Gallery

