. Birds of New York . Digitized by IVIicrosoft® BIRDS OF NEW YORK Memoir 12. N. Y. State Museu Plate 50. GYRFALCONFalco rusticoius gyr/alco Linnaeus WHITE GYRFALCONFalco islandus Briinnich BLACK GYRFALCON Falco rusticoius obsoletus GmeVmAll i nat. size Olaltized bv Microsoft®

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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbirds, bookyear1910