PLATE IV. 



Fig. 1 Herring Gull, Lams argentatus. Brunnich. 



,, 2. Laughing Gull, Chrmcocephalus atricilla. Linnaeus. 



3. Kittiwake GuU, Rissa tndaetyla. Bonaparte. 



4. Wilson's Tern, Sterna Vfilsonii. Bonaparte. 



5. Least Tern, Sterna frtnata. Gambel. 



