190 . RED-THROATED DIVER. 



grass loosely put together. Dr. Richardson observed 

 that it frequents the shores of Hudson's Bay up to 

 the extremity of Melville Peninsula. 



The male in summer has the bill nearly black, 

 crown blackish grey, feathers margined with a paler 

 shade, upper plumage with the flanks behind the 

 legs deep blackish grey, on the line of the nape and 

 sides of the breast having the feathers edged with 

 white, giving a striated appearance to those parts, 

 which will be seen much more distinctly marked in 

 the specimens which we have immediately to de- 

 scribe ; on the back and wings the ground colour is 

 tinted with brown, each feather with a paler mar- 

 gin, and in the specimen before us, in other respects 

 completely mature, a few scattered oval spots of 

 white appear; quills and tail of a darker shade. 

 Below, the sides of the head, the cheeks, chin, throat 

 and sides of the neck, are bluish grey ; fore part of 

 the neck with a lengthened patch of rich orange- 

 brown, narrow at its upper end, and broadening 

 downwards; breast, belly, and vent, pure white. 

 In birds procured in winter we have the bill paler ; 

 the space around the gape, cheeks, sides of the 

 neck, and under parts, pure white ; the forehead, 

 crown, and nape, grey, clouded longitudinally with 

 white, indicating the place of the striso ; back and 

 upper parts dark blackish grey slightly tinted with 

 brown, each feather with an oval white spot at the 

 tip on each web, becoming more marked, larger, 

 and more triangular, on the scapulary feathers ; tail 

 tipped with white. 



