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Nests in winter

Carl writes: “Winter is a rather good time to look for bird nests. For one thing they are easy to see. They may be constructed of grass, twigs, animal hair, moss, spider silk, leaves, mud or even branches in the case of eagles. Nests are marvelous creations, which require considerable effort by the species that uses it. Often one can tell what species built the nest by the materials used, its shape, and its general location. When an old nest is covered with a cap of snow in mid-winter we may think its usefulness is long past, but over-wintering insects or field mice could likely tell us another story. In nature nothing is useless or goes to waste.”

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