. Birds of New York . Digitized by IVIicrosoft® BIRDS OF XEAV YORK Memoir 12. N. Y. State Museum Plate 5. RING-BILLED GULLLaru8 dtla ADULT IN SUMMER GREAT BLACK-BACKED GULL Larus marinus Linnaeus IMMATURE ADULT IN SUMMER TZSl^tized by :: HERRING GULL Luriis aruentatus Brtlnnich ADULT IN SUMMER GLAUCOUS GULL Larus glaucus Briinnich END OF SECOND VEAR ADULT IN SUMMER IMMATURE All 1/7 nat. size Digitized by IVIicrosoft® BIRDS OF NEW YORK Memoir 12. N. Y. State Museum Plate 6

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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbirds, bookyear1910