Vol i9^6" in ] Dwight, The White-winged Gulls. 37 



that adult kumlieni is possessed of a character (the dusky subapical 

 banding of the primaries) that neither leucopterus nor glaucescens 

 have at any stage of plumage and therefore its right to rank as a 

 species seems unimpeachable. The type locality is Cumberland 

 Sound, where it breeds, and winter specimens have been taken 

 chiefly along the Atlantic coast of Canada and the United States 

 as far south as New York. 



The plumages when taken up in their proper sequence are 

 as follows: 



The natal down is unknown as no chicks have as yet found 

 their way into collections. 



Juvenal Plumage. — Mr. L. Kumlien, who secured the type 

 of the species at Cumberland Sound, mistook all the birds he 

 saw for glaucescens, and speaks of the young as "even darker 

 than the young of L. argentatus, the primaries and tail being very 

 nearly black." This is not an accurate statement for although 

 the birds are as dark as glaucescens in like plumage, they are not 

 as dark as argentatus. The juvenal plumage may be described 

 as follows: 



Above, drab-gray mottled with dull white and obscurely barred 

 and mottled with darker gray; below more solidly gray, paler 

 about the head and throat. Flight-feathers a brownish gray, 

 darker than the body, the outer webs of the primaries darkest. 

 Tail almost solidly drab-gray, the basal portion and the outer 

 pair of rectrices sprinkled with dull white; the upper and under 

 tail-coverts, similar in color but with a good deal of blotching or 

 barring. Bill "dusky," paling to buffy flesh-color at base. Legs 

 and feet "flesh" (in dried specimen dull ochre). Iris "gray." 

 This description would fit any one of three birds, a male in the 

 collection of Dr. Wm. C. Braislin, taken at Rockaway, New York, 

 March 9, 1898, a female in the collection of Mr. Louis H. Porter, 

 taken at Stamford, Conn., Feb. 16, 1894, and an unsexed (undoubt- 

 edly male) bird in my own collection obtained near Tadousac, 

 Quebec, by an Indian during the winter of 1900-01, probably 

 towards spring. They might easily pass for specimens of glauces- 

 cens, if it were not for the small bills and rather smaller dimensions. 

 They are considerably darker (especially the primaries) than the 

 darkest leucopterus I have seen, and the nearly solid gray of the 



