STRANGERS OF THE AUTUMN. 



227 



SPECIES. 



POINTS OF DISTINCTION. 



Buff-breasted Sandpiper 



Sabine's Gull 



Ross's Gull 

 Glaucus Gull 



Iceland Gull 



Ivory Gull 



Little Gull 



Similar in general colouration to 

 Bartram's Sandpiper. Tail gra- 

 duated; all (except two centre 

 feathers) tail feathers, under sur- 

 face of wings, greater and primary 

 wing coverts, buff, marbled with 

 black and white. Length 7 

 inches. 



Tail forked; head dark slate gray; 

 black collar round neck. Hood 

 absent in winter. Length 13 

 inches. 



Tail long and graduated; head 

 rosy; collar black. Length 14 

 inches. 



General colour white ; mantle, 

 scapulars, and wing coverts gray. 

 Head and neck streaked with 

 gray in winter ; orbits vermilion. 

 Young have primaries grayish 

 white. Length 28 to 33 inches. 



Similar to preceding in colour, but 

 smaller ; adult's orbits flesh 

 colour. Length 22 inches. 



Entirely white; orbits vermilion. 

 Immature birds have black spots 

 on wing coverts, and black tips 

 to primaries and tail feathers ; 

 still younger birds have black 

 spots also on mantle and 

 scapulars. Length 16 to 18 

 inches. 



Smallest Gull (wing 9^ inches). 

 Head black in summer, white 

 in winter streaked with gray. 

 Length 10 to n inches. 



Q 2 



