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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Sonoma Coast State Park, California
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Reflecting on fall
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A cliff-hanging complex of temples
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Does this chameleon look a little insecure?
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I am the walrus
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Over the boardwalk
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Wyoming celebrates its statehood
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World Reef Day
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National Mushroom Day
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World Bamboo Day
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Trevi Fountain, Rome, Italy
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Umschreibung by Olafur Eliasson in Munich
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The mountaintop of toppled gods
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Vacuum Chamber 5 at Glenn Research Center
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Daylight saving time
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Moving as one
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World Whale Day
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Hitsujiyama Park, Saitama Prefecture, Japan
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Cheetah in Ngorongoro Conservation Area, Tanzania
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Why you should thank a nurse today
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Wild and Scenic Rivers Act
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Boxing Day—a shopper’s delight
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Installation art turns heads
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Ostuni, Apulia, Italy
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Sanday Island and the North Sea, Scotland
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Lake Bled, Slovenia
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Composite of photographs from the Apollo 15 mission
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Let s get lost
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Al-Khazneh in Petra, Jordan
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Groundhog Day
Bing Wallpaper Gallery

