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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Racers pushing past sunflowers in the 2018 Tour de France
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Flag Day
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World Theater Day
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Our Lady of the Rocks
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Haaga Rhododendron Park
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World Octopus Day
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Happy International Astronomy Day!
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Patriot Day
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Amphitheatre of El Jem, Tunisia
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A new park with a new mission
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Cecil Brewer Staircase, London
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Museum Mile Festival
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It s National Camera Day. Get the picture?
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National Rivers Month
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Ice and Snow Sailing World Championships
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A field of English lavender
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Chilling out in the Arctic
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These patterns tell a story
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Staring down winter
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Composite of photographs from the Apollo 15 mission
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Mount Sopris, Colorado
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The Door County Coastal Byway in Wisconsin
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World Giraffe Day
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Darwin Day
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Seceda, Dolomites, South Tyrol, Italy
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Salar de Uyuni salt flats in Bolivia
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Teacher Appreciation Day
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International Beaver Day
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Nyhavn Canal, Copenhagen, Denmark
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Mount Logan in Yukon, Canada
Bing Wallpaper Gallery

