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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Fresh water on the Silk Road
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Anniversary of Bryce Canyon National Park
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Infrared Jupiter, erupting Io
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Chapel of St. Michel on Lake Serre-Ponçon, Hautes-Alpes, France
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Khao Sok National Park in Thailand
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Oud-West, Amsterdam, Netherlands
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Getting to the bottom of the underwater waterfall
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Happy New Year!
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Juniper Springs, Florida
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World Bicycle Day
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Dressed to impress
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Happy Juneteenth!
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National Park Service Founders Day
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1, 1, 2, 3: It s Fibonacci Day!
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International Day of Peace
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International Archaeology Day
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Yabba-Dabba-Doo!
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1.1 billion opportunities for a better world
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National Pearl Harbor Remembrance Day
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Detroit Industry Murals by Diego Rivera
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Hawai i Volcanoes National Park at 106
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World Otter Day
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Icelandic horses, Iceland
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A winter wonderland in Northeast China
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A black heron canopy feeding in Botswana
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Lunar eclipse
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Berlin Festival of Lights
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Protecting wildlife today and tomorrow
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Yungang Grottoes, Shanxi, China
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On the hunt
Bing Wallpaper Gallery

