KEY TO THE BIRDS. 



of tail, and wing linings white ; below white and gray. Legs 



and feet light red. 



Common Tern. See page 372. 



7. Bill black, yellow at tip, and reddish at base. Black cap and 



long head feathers ; back of neck white, also entire under 

 parts white with a rosy wash. Wings varied gray ; tail pearl- 

 gray. Feet and legs yellowish red ; claws black. 



Roseate Tern. See page 273. 



8. Legs and bill yellow. Crown black ; back, wings, tail, and rump 



gull-blue. A few outer wing feathers black ; below white. 



Least Tern. See page 275. 



I. STOUT-BODIED DIVING BIRDS OF FRESH AND SALT 



WATER. 



1. Short, thick, black bill. Above dark brown with some white on 



wings ; below generally whitish. A small off-shore bird seldom 

 seen near land. 



Dovekie. See page 275. 



2. Bill black, edged with yellowish. Head, throat, and neck iridescent 



green, blue, and purplish. Triangular patches of black and 

 white streaks on either side of the throat, almost joining at the 

 back, and narrowing in front. Sides of breast streaked with 

 black and white ; under parts white. 



Loon. See page 276. 



3. Bill black. Blue-gray forehead. Upper parts generally dull 



black, streaked and mottled with white ; a triangle of rusty 

 red on the front of neck. White below. 



Red-throated Loon. See page 276. 



4. Prominent crest, forming two yellow-brown horns, rest of head 



puffy and glossy black. Above dark brown with edgings of 



gray and black. Neck, upper breast, and sides rusty brown ; 



some white on wings. Bill black with yellow tip. These 



birds are expert swimmers but practically helpless on land. 



In winter, horns lacking. 



Horned Grebe. See page 277. 



5. Some bristling, frontal feathers, but no regular horns. Above 



dark brown, showy black markings on chin and throat. 

 Breast and lower throat yellowish brown, irregularly spotted 

 and barred on the upper parts ; lower parts glossy white. 

 Wings brown, gray, and white. Bill much spotted. 



Fied-billed Grebe. See page 278. 



X 305. 



