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 choeks, 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 stria) ; 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. 
