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Discover the territorial and rather haphazard methods the male sparrows use in nesting season. Sparrows breed mostly in the months from March through August, remaining loosely monogamous. Sixteen different sparrow specimens are shown here, demonstrating Chicago's most abundant types.

These birds are subject to the Migratory Bird Treaty Act and remain under the stewardship of the U.S. Fish and Wildlife Service. They can be borrowed for wildlife conservation, ecology, biology, scientific, or educational purposes. There may be limits on other, non-educational uses. Please contact us if you have any questions.

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