... not one Gull or Tern would now Remain on our Atlantic Coast... 
William T. Hornaday 「Our Vanishing Wild Life」
...Skuas and Jægers are birds having a Gull or Tern-like form and with a hookedbill, the base of which is covered with a scaly shield...
Chester A. Reed 「The Bird Book」
...Glaucus Gull...
Chester A. Reed 「The Bird Book」
...Kumlien's Gull...
Chester A. Reed 「The Bird Book」
...This Gull, which formerly was No...
Chester A. Reed 「The Bird Book」
...A beautiful Gull, 16 inches long, witha dark slate colored head, gray mantle, blackprimaries, and white neck, underparts and tail...
Chester A. Reed 「The Bird Book」
...Sabine Gull...
Chester A. Reed 「The Bird Book」
...Its plumage is similarto that of the Bonaparte Gull but the bill isred...
Chester A. Reed 「The Bird Book」
...LadyLoch to the Summer School is better known in England as theArctic Gull or Richardson Skua...
John Albert Leach 「An Australian Bird Book」
...Ivory Gull (Pagophila alba)...
Frank M. Chapman 「Color Key to North American Birds」
...Ring-billed Gull (Larus delawarensis)...
Frank M. Chapman 「Color Key to North American Birds」
...Short-billed Gull (Larus brachyrhynchus)...
Frank M. Chapman 「Color Key to North American Birds」
...Glaucous Gull (Larus glaucus)...
Frank M. Chapman 「Color Key to North American Birds」
...Western Gull (Larus occidentalis)...
Frank M. Chapman 「Color Key to North American Birds」
...California Gull (Larus californicus)...
Frank M. Chapman 「Color Key to North American Birds」
...Bonaparte Gull (Larus philadelphia)...
Frank M. Chapman 「Color Key to North American Birds」
...Larus argentatus Pontoppidan: Herring Gull...
Robert K Selander 「Vertebrates from the Barrier Island of Tamaulipas, México」
...The plumage cycle of the California gull (Larus californicus) withnotes on color changes of soft parts...
Robert K Selander 「Vertebrates from the Barrier Island of Tamaulipas, México」
...The annual reproductive cycle of the California gull...
Robert K Selander 「Vertebrates from the Barrier Island of Tamaulipas, México」
... "Perhaps you'd prefer some wings; orstay, here is a sweet little gull that will go all right with the restof the trimming...
Virginia Sharpe Patterson 「Dickey Downy」
...—Friedmann, Griscom, and Moore (1950:103) stated that the Ring-billed Gull occurs in Coahuila...
Emil K. Urban 「Birds from Coahuila, Mexico」
...The Herring Gull is a large and powerful bird, thoroughly competentto dispose of a herring or even a more bulky fish...
Rev. C. A. Johns 「British Birds in their Haunts」
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