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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Old man s whiskers growing wild
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Caribbean flamingos, Yucatán Peninsula, Mexico
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National Frog Month
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Pont Rouge
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These laurels are hardy
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Registan Square, Samarkand, Uzbekistan
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The Sky Over Nine Columns in Venice, Italy
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International Day of Forests
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Enter the magical world of Livraria Lello
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International Day for Biosphere Reserves
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Work out on your way to work
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Moose, Denali National Park, Alaska
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Lake Bled, Slovenia
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World Rivers Day
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How Quảng Ngãi got its grove back
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Yabba-Dabba-Doo!
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Hut, hut, hike!
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Corfe gets creepy
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San Francisco Bay salt flats
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Diwali
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Daiichi Tadami River Bridge, Fukushima, Japan
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Mercury in retrograde
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Bryce Canyon National Park, Utah
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Sunrise at Grand Teton National Park, Wyoming
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Lick Observatory
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Silver-studded blue butterflies
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Cloudy with a chance of enlightenment
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World Bicycle Day
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Fat Bear Week
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A reflection of Europe s past
Bing Wallpaper Gallery

