DUCK. 333 



Anas erythrocephala, N. C. Petr. xv. 405. 14. t. 20. 



Penelope, Bris. vi. 384. t. 35. f. 1. Id. 8vo. ii. 462. Gerin. v. t. 583, 584. 



Die Tafelente, Bechst. Deuts. ii. 056. Id. Ed. 2d. iv. 1028. 



Rothhals, Besc. d. Berl. Nat. iv. 603. t. 17. f. 5, 6.— the trachea. Naturf. xii. 136. 



Schr. d. Berl. Nat. iii. 374. t. 8. f. 1. 

 Millouin, Buf. ix. 216. PI. enl. 803. 

 Pochard, Gen. Syn. vi. 523. Id. Sup. ii. 354. Br. Zool. ii. No. 284. Id.fol. 156. 



1)1. Q. 5. /rf. 1812. ii. p. 271. Will. Engl. 367. pi. 72. Arct. Zool. ii. No. 491. 



Albin, ii. pi. 98. Z,iw. Trans, iv. 116. pi. xiv. f. 5, 6. — the trachea. Bewick, ii. 



pi. in p. 356. Letvin, vii. pi. 253. Walcot, i. pi. 74. Pu/t. Dors. p. 20. Orn. 



Diet, fy Supp. 



THIS is about the size of the Wigeon, but shorter ; length 

 nineteen inches, breadth two feet six inches ; weight twenty-eight 

 ounces. The bill one inch and three quarters long, broader than in 

 the Wigeon, deep blue, with a black tip; irides orange; head and 

 neck deep chestnut; lower part of the neck and breast, and upper 

 part of the back, dusky black ; scapulars, and wing coverts nearest 

 the body, bluish white, minutely barred with dusky black ; exterior 

 wing coverts and quills dusky brown ; belly dusky white, with 

 numerous dusky lines on the sides; tail dusky grey, of fourteen 

 feathers, dashed with ash ; legs lead-colour. 



The female has the head pale reddish brown ; breast the same, 

 but deeper ; wing coverts and belly cinereous ; back as in the male. 

 The trachea of the last is like that of the Scaup, but two inches 

 shorter, and of nearly the same diameter throughout ; the drum-like 

 labyrinth at the bottom is more round on the upper side, but crossed 

 with a small bony partition, as in that bird. The bony box, of 

 which the other partition consists, is scarcely elevated on this side, 

 and on the other much less so than in the Scaup ; it likewise forms 

 an obtuse angle with the rest of the trachea ; but in the Scaup it 

 does not deviate from straight line, though forming a considerable 

 enlargement. 



Pochards are met with in the fens of England in the winter, 

 whence they are brought up to the London markets ; sometimes in 

 considerable numbers, where they are known by the name of Dun 



