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 Birthday, Eiffel Tower
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Mysterious prairie mounds abound
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Infrared Jupiter, erupting Io
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National Mushroom Day
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Even nature needs a backup plan…
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Entoloma hochstetteri mushroom at Lake Mahinapua, New Zealand
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Devils Tower National Monument, Wyoming
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Waiting for winter
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Gateway to America
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The National Museum of the American Indian
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Grand finish of Le Tour
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The Matterhorn reflected in Lake Stellisee at sunrise, Zermatt, Switzerland
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Nature Photography Day
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Mandarin duck, Richmond Park, London, England
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Don’t get lost in there
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Celebrating Pi Day
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Vinh Hy Bay, Vietnam
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Kjell Henriksen Observatory
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Salzburg, Austria
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Spine-cheeked anemonefish in Milne Bay, Papua New Guinea
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Travel Sunday: Liverpool
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National Take a Hike Day
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International Lighthouse Weekend
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Palouse farmland, Washington state
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Rock House in Hocking Hills State Park, Ohio
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A young bull moose in Denali National Park, Alaska
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New Year s Eve
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White Sands National Park turns 90
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World Art Day
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Queen Elizabeth s Platinum Jubilee
Bing Wallpaper Gallery

