LARID/H 



555 



SUB-FAMILY I. 



Larix^. 



TJie Gulls proper 



Gex. Chakac. — Bill more or less lengthened, straight, compressed on the 

 sides, with the culmen straight at the base and curved to the tip, which is 

 acute ; the nostrils lateral, sub-medial, and oblong ; the wings lengthened 

 and pointed ; the tail moderate and usually even ; the tarsi moderate and 

 strong ; the toes moderate, the fore-toes united by a web, aud the hind toe 

 generally short aud elevated. 



Fig. 213.— the common gull. 

 {Larus canus.) 



These birds are scattered over tlie seas of all coun- 

 tries throughout the world. Sometimes, during the 



