. Handbook of birds of eastern North America; with introductory chapters on the study of birds in nature . aughing Gull. a^. Inner half of inner web of first primary white. 62. Sabines Outer primary mostly white. 61, Tip of first primary white 59. Franklins Gull. 6^. Tip of first primary black 60. Bonapartes Gull. B. Head white, sometimes washed with pearl-gray. a. Wings white 39. Ivory Gull. 6. Primaries with more or less Wing over HOO. 62. Hind-toe very small, without a 40. Kittiwakb. 63. Hind-toe normal, with a nail ... 54. Ring-billed Wing under llOO 61.
. Handbook of birds of eastern North America; with introductory chapters on the study of birds in nature . aughing Gull. a^. Inner half of inner web of first primary white. 62. Sabines Outer primary mostly white. 61, Tip of first primary white 59. Franklins Gull. 6^. Tip of first primary black 60. Bonapartes Gull. B. Head white, sometimes washed with pearl-gray. a. Wings white 39. Ivory Gull. 6. Primaries with more or less Wing over HOO. 62. Hind-toe very small, without a 40. Kittiwakb. 63. Hind-toe normal, with a nail ... 54. Ring-billed Wing under llOO 61. Rosss Gull 154 GULLS Tail marked with black. A. Wing over 13-25. a. Primaries mostly white 39. Ivory Gull (Im.). b. Primaries black or mostly black . 54, Ring-billed Gull (Im.). B. Wing under 13-25. a. Hind-toe very small, without a nail .... 40. Kittiwake (Im.).6. Hind-toe normal, with a nail. 61. Tarsus 1-50 or over 58. Laughing Gull (Im.). c^. Tarsus under 1-50. c2. Secondaries pearl color, tail square. 60. Bonapartes Gull (Im.).c^. Secondaries mostly white, tail rounded. 61. Rosss Gull (Im.). Fio. 78. First primaries of adult Gulls, seen from below: (a) Herring Gull; (6) Ring-billed Gull; (c) Laughing Gull; (d) Franklins Gull; (e) Bonapartes Gull. 39. PagophUa alba (Gunn.). Ivory Gull, ^r/i.—Entire plumagepure white; bill yellow, foot black. //??.—Similar toad., but wing and tail-foathors, and soniotimos wing-coverts, with a black spot at their tips. L.,1700; W., 13-25; T., ; 1-35. Range.—Arctic seas. Breeds in high Arctic latitudes from Melville GULLS 155 Island and n. Baffin Land to n. Greenland, and on Arctic islands of ; winters in the Arctic regions and casually s. to B. C, LakeOnt., and L. I.; in Europe, s. to France. Long Island, A. V., one record, Jan. JVest, of grass, moss, and feathers on rocky cliffs. Eggs, light yellowisholive, marked with small blotches of brown and larger cloudings of lilac,2*45 X 1-70 (Brewer). Date, Prince Patricks
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbirds, bookyear1912
