. The birds of eastern North America known to occur east of the nineteenth meridian .. . V Bonapartet* Gull. (iiiU loBca llio lilm-k in wiiiUr. Sabliif-* (Mill. 38 KEY TO THE BIRDS OF EASTERN NORTH AMERICA. Underparts, white; first primary, entirely black or dark brown (adult). Larus atricilla. Laughing Gull. See No. 33. General plumage, white; back, white; first primary entirely white, or with a blackishspot at tip; hind toe, with nail; bill, yellow. Pagophiln alba. Ivory QuII. See No. 22. Back, pearl gray; inner web of primary, white, broadly tipped with black; a s
. The birds of eastern North America known to occur east of the nineteenth meridian .. . V Bonapartet* Gull. (iiiU loBca llio lilm-k in wiiiUr. Sabliif-* (Mill. 38 KEY TO THE BIRDS OF EASTERN NORTH AMERICA. Underparts, white; first primary, entirely black or dark brown (adult). Larus atricilla. Laughing Gull. See No. 33. General plumage, white; back, white; first primary entirely white, or with a blackishspot at tip; hind toe, with nail; bill, yellow. Pagophiln alba. Ivory QuII. See No. 22. Back, pearl gray; inner web of primary, white, broadly tipped with black; a small rudi-mentary hind toe without nail. Jiissa tridactiile. Kittiwake QuII. See No. 23. * Group 3. Wing, 13 to 15 inches long. Uudorparts, white; first primary entirely black, or dark brown. Larus atricilla. Laughing No. 33. General plumage, white; first primary, entirelj white, or with a dusky spot near tip; hindtoe, with nail; bill, less than ; wing, less than 14 ; ])iil, yellow. Pagophiln alba. Ivory No. 22. Underparts, white; inner web of primary, white, br
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Keywords: ., bo, bookcentury1800, bookdecade1890, booksubjectbirdsnorthamerica
