Trumpeter Swans in Chicago (10 images)

Updated: June 2, 2008 at 9:52 AM
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A female trumpeter swan swims with her newly hatched cygnets at Lincoln Park Zoo in Chicago on June 1, 2008. Trumpeter swans were hunted to near extinction by 1900 and now, thanks to managed breeding and recovery efforts, these swans are thriving again in many parts of the Midwest. (UPI Photo/Brian Kersey)
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