ALPINE SWIFT. 129 
and nape on the sides, brown; chin, throat, and breast, white; 
there is a dusky band across the upper part of the latter; 
back, brown. The wings reach two inches beyond the end 
of the tail; the second quill feather is the longest in the 
wing, the first feather a little longer than the third—the 
shafts of all black; greater and lesser wing coverts, primaries, 
secondaries, and tertiaries, brown—the two latter are very 
short. The tail is forked, and the feathers, which are brown, 
are very stiff; under tail coverts, brown. The legs are 
feathered with brown feathers; toes, orange brown; claws, 
dark brown. 
The female differs in no perceptible respect from the male, 
but is rather smaller in size. 
VOL. II. K 
