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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On this shore, history was made
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Protect your neck
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Autumn comes to Old Town
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New Year s Eve in Sydney, Australia
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In honor of those we ve lost
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Aerial view of the Colorado River Delta in Mexico
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Who left the tub running?
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Bridge of Hillsborough County
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200th anniversary of Brazilian independence
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Back to the nest
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A winter light show
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A holiday beacon of light
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AAPI Heritage Month & Lei Day
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International Beaver Day
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Who s there? The largest owl in the world
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Time to count some birds
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Fibonacci Day
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An avian predator built for the snow
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Pearl Harbor Day
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Prague, Czech Republic
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Agüero, Huesca province, Spain
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Te Rewa Rewa Bridge near New Plymouth, New Zealand
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Longer days mean warmer sand
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Christmas Tree Point Road and Twin Peaks, San Francisco
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An icy extravaganza
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Celebrating Mexico in a Cultural Capital
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Behold the perfect cone
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Celebrating Labor Day
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Leaves of Grass
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National Fossil Day
Bing Wallpaper Gallery

