BIRD-STUDY 



89 



zz Head and under 

 parts a bright cin- 

 namon Cinnamon Teal, male 

 zzz Head and wings 

 dusky 

 J Throat white 



Blue-winged Teal, female 

 ft Throat dark 



Cinnamon Teal, female 

 xx Wing without large blue 

 patch on it 

 y Wing patch white 



bordered with black Gadwall 



yy Wing patch violet 

 bordered front and 

 back with white Mallard, female 



yyy Wing patch green 



z Large white patch 



in front of it Baldpate, female 



zz No white patch on 



wing Green-winged Teal, female 



A- 2. Birds of soaring flight usually seen on the wing; wings 

 long and sharp-pointed 



E Bill hooked; birds (except for a few) considerably 

 larger than a robin; this group includes the gulls, 

 terns, hawks, and buzzards 



I Feet webbed and extended backward in flight, 

 usually seen over bodies of water, flying rather 

 low and in straight lines 

 Pearl gray above, white or light below 

 X As large as or larger than a crow 



Y Top of head black, bill coral red, 

 feet black, tail forked, male crested 

 YY Head white, tail square 



a Bill unmarked, length 24 in. 

 aa Bill with dark, encircling band, 

 lenth i8| in. 



NOTE. Immature birds, of ten 

 seen flying with the old ones, are 



much darker; tail, of mature 

 herring gull has the buffy 

 border. The ring-billed gull 

 has a wide black border. 



Caspian Tern 



Herring Gull 



Ring-billed Gull 



