Synopsis of Orders and Families. 



MALLARD. 



Family 15. DUCKS, GEESE, AND SWANS. ANATID/E. 



Bill long, narrow, and rounded with tooth-like projections along its sides. (Mergan- 

 sers. Subfamily Mergirue.) 



Bill broad, flattened, typically duck-like; tarsus or leg with transverse scales; hind 

 toe without a lobe. (River Ducks. Subfamily Anatmc?.) 



Bill and tarsus as in preceding, but hind toe with a broad lobe or flap. (Sea and Bay 

 Ducks. Subfamily Fuligulince.) 



Bill proportionately narrower than in the River or Bay Ducks; gutters on its sides 

 less developed; scales on front of tarsus rounded. (Geese. Subfamily Anserince.) 



Large, usually white birds, witn bare eye space. (Swans. Subfamily Cygniiue.) 



Order VI. Flamingoes. ODONTOGLOSS^E. 



(1 family, 1 species.) 



Bright red or pink and white birds, standing four feet or more in 

 height; side of the bill with gutters, its end bent downward; wings 

 rather short; legs long; feet webbed. 



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