Plate IV 





4> * 



^■. ".Vs. 







^m» 



^% 





-^1^^ 











]c\% 1 Ilorriiif; (iull, LrtCMS argfn(«<H.«. Bruiinirli. 



,. 2. liaugliiiig Gull, Cliroicnreplifiliix atririlla. Linnaus. 



,, 3 Kittiwiike (jullj A'/'i.'ta «)-///«c/i^/n. Bonaparte. 



„ 4 Wilson's TiTP, Sterna Wihonii. Bonaparte. 



., ,0 Least Tern, Slrrnn frcnata. Gambel. 



