19 



c, Webs between all toes (3 webs) 



Fig. 6 — Gannet 

 Full-webbed Swimmers — Gannets, Cormorants, etc., p. 61. 



Fig. 7 — Mehganseh 

 (a) Side of bill 

 (6) Top of bill 



Fig. 8— Duck 

 (a) Side of bill 

 (6) Top of bill 



Fig. 9— Stjef Scoter Fig. 10— Goobe 



d, Bill toothed or flattened (Duck-like). 

 Sieve-billed Swimmers — Mergansers, Ducks, Geese, and Swans. 



p. 64. 



e, Nostrils in tubes on top of bill. 



Tube-nosed Swimmers — Petrels, etc . 



...■•* — 



Fig. 11 — Petbel 



p. 58. 



