PLATE IV 



Fig. 1 Herring Gull, Larus argentatus. Brunnich. 



2. Laughing Gull, Chroicocephalus atri cilia. Linnaeus. 



3 KittiwakeGull, Rissa tridaclyla. Bonaparte. 



,, 4. Wilson's Tern, Sterna Wilsonii. Konaparte. 



5. Least Tern, Sterna frenata. Gambel. 



