Cuass II. DUN DIVER MERGANSER. 213 
Mergus Castor. M. cristatns Dundiver or Sparling fowl. Duw Diver. 
cinereus capite colloque su- Wil. orn. 335. (FEMALE.) 
premo spadiceis, gularemi- Mergus Castor. 6. 545. 
gibus intermediisabdomine- Merganser cinereus. Brisson 
que albis. Lath. Ind. orn. av. vi. 254. tab. 25. 
829. ad. Syn. vi. 420. id. Le Harle femelle. Hist. dois. 
Sup. i. 270. id. Sup. ii. viii. 236. Pl. Enl. 953. 
336. id. Lin. Tr. iv. 122. Mergus Gulo. Scopoli, No. 
Mergus cirrhatus. Gesner av. 88. 
134. Arct. Zool, it. 257. 
THE Dun Diver*, or female, is less than 
the male; the head, and upper part of the 
neck are ferruginous; the throat white; the 
feathers on the hind part are long, and form a 
pendent crest ; the back, the coverts of the wings, 
and the tail are of a deep ash color ; the greater 
quil feathers are black, the lesser white; the 
breast, and middle of the belly, are white, tinged 
with yellow. 
We believe that Belon + describes this sex 
* « Mr. Montagu in his ornithological dictionary, and Dr. 
Latham inhis Synopsis, the first supplement, and in his very cu- 
rious treatise on the T’rachee of birds in the fourth volume of the 
Linnean Transactions, considers the Dun Diver as a species dis- 
tinct from the Goosander. In the second supplement, that able 
naturalist seems to change his opinion, and informs us, ‘‘ that 
both sexes for the first season at least, have the appearance of the 
Dun Diver, which the female retains throughout life, whilst the 
male gradually gains the beautifully white plumage he is known 
by.” Ep. 
+ Belon av. 163. 
