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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In search of roadside attractions on ‘America’s Highway’
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The tale of squirrels like Nutkin
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Monteverde Cloud Forest Reserve in Costa Rica
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Castle on a hill
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Going head-to-head with winter
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Rosa Parks Day
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Grand Teton National Park
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Bathing huts in Skåne County, Sweden
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A new tradition in London
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World Children s Day
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International Moon Day
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Singing praises of the oceans
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Happy Mother’s Day
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It s only Wednesday
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Celebrating World Olive Tree Day
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Whooper swans in Lake Kussharo, Japan
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International Lighthouse Weekend
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Golling Waterfall, Salzburg, Austria
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Flock together for Cousins Day
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The Wall for Peace
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A step toward freedom
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Maritime forest on Cumberland Island, Georgia
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An aviation celebration
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75 years of the United Nations
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An ice cap-puccino
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Salt ponds of Maras, Peru
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A plot was afoot
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Great gray owls in their nest, Finland
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Reflecting on one of the world s strangest rivers
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International Ice and Snow Sculpture Festival, Harbin, China
Bing Wallpaper Gallery

