53 California Gull $ .50 



Larus calif or nicua 



\ 



,54 Ring^billed Gull 



Larus delawarensis *0 



SS Short-billed Gull , * 



Larus bracbyrbynchus O.OO 3.OO 



/ j [56] Mew Gull ^$ * 35 



Larus canus 



57 Heermann's Gull 



Larus heermanni 



/ 58 Laughing Gull 



Larus atricilla 



59 Franklin's Gull 



Larus franklinii 



60 Bonaparte's Gull 



Larus pbiladelpbia 



[60.1] Little Gull 



Larus minutua 



61 Ross's Gull 



Rhodostetbia rosea 



*/3 





.20 



•50 

 .60 





* 



4.00 



62 Sabine's Gull ^ * . 0Q 



Xema sabiuii 



63 Gull-billed Tern 45 



Geloebelidon nilotica. 



1 64 Caspian Tern V3 



Sterna caspia 



.40 



65 Royal Tern , .35 



Sterna maxima 



66 Elegant Tern 



Sterna elegans 



7 67 Cabot's Tern ' * 



Sterna sandvicensis acnflaTi 



16 



