22 
CAPRIMULGUS VOCIFERUS. 
almost exactly ; the male also corresponded in its 
marking’s with the one first found ; and all four were 
evidently of one species. The egg’s differed from the 
former both in colour and markings. 
“ The differences between these two birds were as 
follow : — The sides of the mouth in both sexes of the 
whip-poor-will were beset with ranges of long and very 
strong bristles, extending more than half an inch beyond 
the point of the bill ; both sexes of the night hawk 
were entirely destitute of bristles. The bill of the 
whip-poor-will was also more than twice the length of 
that of the night hawk. The long wing quills, of both 
sexes of the night hawk, were of a deep brownish black, 
with a large spot of white nearly in their middle, and, 
when shut, the tips of the wings extended a little beyond 
the tail. The wing-quills of the whip-poor-will, of both 
sexes, were beautifully spotted with light brown ; had 
no spot of white on them, and, when shut, the tips of 
the wings did not reach to the tip of the tail by at least 
two inches. Thu tail of the night hawk was handsomely 
forked, the exterior feathers being the longest, shortening 
gradually to the middle ones ; the tail of the whip-poor- 
will was rounded , the exterior feathers being the 
shortest, lengthening gradually to the middle ones. 
<c After a careful examination of these and several 
other remarkable differences, it was impossible to with- 
stand the conviction, that these birds belonged to two 
distinct species of the same genus, differing in size, 
colour, and conformation of parts. 
cs A statement of the principal of these facts having 
been laid before Mr Bartram, together with a male and 
female of each of the above mentioned species, and also 
a male of the great Virginian bat, or chuck- wilPs-wi do w, 
after a particular examination that venerable naturalist 
was pleased to declare himself fully satisfied ; adding, 
that he had now no doubt of the night hawk and the 
whip-poor-will being two very distinct species of capri- 
mulgus. 
“ It is not the intention of the writer of this to enter 
at present into a description of either the plumage. 
