April 1, 2008: Chipmunk Building
These small rodents build extensive tunnels and dens underground, for both living quarters and food storage.
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April 2, 2008: Fledglings
When feathers replace down, birds are ready to try a first flight, but some birds leave the nest even before they can fly.
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April 3, 2008: Precocial Young
Though many bird hatchlings are helpless, precocial types are on the go almost from day one.
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April 4, 2008: Nesting Materials
From bare earth to a mixture of mud and dung, birds use an incredible array of materials to build and decorate nests.
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April 7, 2008: Cedar Waxwing
This bird has unique secondary feathers that look like they’re tipped with red wax.
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April 8, 2008: Wild Horses of Assateague
The island of Assateague, off Maryland and Virginia, is home to two famous herds of wild horses.
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April 9, 2008: Omnivores
Animals that eat almost anything are called omnivores, and there are some unexpected animals in this category.
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April 10, 2008: Sandhill Cranes
These birds can now be seen in abundance along the Platte River in Nebraska as part of their annual migration to Northern Canada.
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April 11, 2008: Bighorn Sheep
Snow-covered mountains resound with the crashing sounds of battle when the mating season of some inhabitants begins.
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April 14, 2008: Bombastic Courtship
Male prairie chickens congregate in a special place to strut, twirl, stamp, and boom in an elaborate mating display.
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April 15, 2008: Birds Without Nests
Many birds, such as whip-poor-wills and least terns, don't build a nest at all. They lay their eggs on the ground.
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