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Keywords from Image Description:
Whitewinged Silvery Gull. .Male in Summer. . Young in Winter NYPL b. en Larus leucopterus nypl org Scan by NYPL Whitewinged Silvery Gull Male in Summer Young in Winter Audubon Chevalier General Research Division aecffefdabc The birds of America from drawings made in the United States and their territories ddeadeeaa repo