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Cliff Swallows and Pest Management

10,000 Birds

Cliff Swallows migrate to North America from their wintering grounds in South America to nest in large colonies, sometimes numbering in the thousands. It is illegal for any person to take, possess, transport, sell, or purchase them or their parts, such as feathers, nests, or eggs, without a permit.

San Diego 165
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The Marsh Wren Singing and Gathering Nesting Material

10,000 Birds

These vociferous little birds can usually be heard throughout the freshwater and saltwater marshes in North America. According to Birds of North America Online , there may be several reasons. America’s National Wildlife Refuge System is the world’s largest network of protected areas dedicated to wildlife conservation.