ROUND-CRESTED DUCK. 
found, but retire to the unsettled border-s of 
t!ie province ; and that some birds, never 
knov^/n to the early settlers, now appear in 
great numbers, and much annoy their corn- 
fields and plantations. Catesby has figured 
this Duck of it's natural size, in his History 
of Carolina. He rightly observes, that it is 
not stri6lly of the Duck kind ; but of tlie 
Mergus, described by Williighby. See various 
specimens of them., from p. 335. to 337. in his 
Vol. I. Catesby says, that they frequent fresh 
Vv'aters, more especially mill-ponds, in Virginia 
and Carolina ; and that the Females are all 
over of a brown colour, havins; a smaller tuft 
of feathers on their heads than tiie Males. 
Catesby, not being a settled inhabitant in 
America, had not observed that they were 
Birds of Passage." 
BufFon's description is short. *' This Mer- 
ganser," says he, which is found in Vir- 
ginia, is very remarkable for a fine edged crown 
on it's head, black in the circumference, and 
"white in the middle, formed of feathers ele- 
vated to a disk ; which has a fine efFcft, but 
appears to advantage onlv in the living bird. 
It's 
