ANATIN.*; — THK DUCKS - MKItOL'S. 



Ill 



PR 



have cnlargt'd oviuius. Uu diil nut, however, meet witli .iiiy of tliis speeies in the 

 neif^hborhood of Miiziithm. 



The .specimen procured in Wisconsin was taken on Kock lliver, November, 1S7<». 

 Mr. L. Iviindien is eonliih'nt that he has since met witli one of tlie.se birds on Lake 

 Ivoskonong ; but he was not able to securo it. 



Gksvh MERGUS, Lixx.i:us. 



Mirgus, Linn. .S. X. ed, 10, I. 17'>S, 121i ; eel. !:>, I. 17titi, -'uj (tyiic, .Umjn.i mirguiiscr, I, inn,). 



Chau. Bill lonj,'L'r than the lii'iid, ihu l)muUh unironuly uhout LMjuid to the dqith, tliu surni- 

 tioiia conical, ucute, and poiiitud backward ; crent occijiital, pointed, or scarcely developed ami 



M. mcrijanscr. 



depressed. Tarsus nearly three fourths the miildle toe, with claw. Tail ahoi'* liidf the lenj,'th of 

 tlie wiiif;s. 1)111 mostly reddish. 



The two North Anu'rican .species of this {jeiuis may t'C readily distinjjiuished as foUow.s, the 

 females alone resendding one another ; — 



1. M. merganser. Nostril situated near the middle of the maxilla ; frontal feathers extend- 

 in;^ farther forward than those on lateral base of hill. Aihdt iiwli' : Ileail and most of 

 the ni;ek ;,'reenish Mack ; head scarcely crested ; juL;ulnm and other lower ])arts creiuuy 

 white, or pale salnion-cohir. Aihdl finuth;; Ili'ad and neck re(ldish ((Jiin and throat 

 white), the occiput with a full crest of leui,'tliened feathers. Above, cliielly bluish ^ray. 

 a. Merganser.^ Clack bases (jf the greater wing-coverts entirely eonceah'(l by the over- 



1 MEUOU.S MEUOANSEIl. 



Mcnjiis mn-oniisfi; Linn. S. N. ed. 10, I. IT.iS, 129; ed. 12, I, 1766, 208. — Nai'M. Viig. 



Dcuts('lil. XII. 1844, 356, pi. 326. 

 McnjusrnhricapiUa, RiiirNN. Orii. Bor. 1764, 22. 

 Menjus castor, Linn. S. \. I. 1706, 209. — Kkv.s. & Br.As. Wirb. Eur. 88. — OiiAV, Oen. B. 



HI. 629 ; Cut. Brit. B. 1863, 208. 

 Mertjimscr vaatnr, BoXAl". Conip. List, 1838, .19. — Maiuim.. Man. 11. 194. 

 Mergntiscr Jliiii.hF.wn, Syst. Cat. 1816, 36. — Stepii. (ien. Zool. .\II. 1824, 161, pL 53. 

 Mcrgmgulo, Scop. Ann. T. N. H. 1769, 69. 



Ooosander, Yark. Brit. B. ed. 2, TIL 395, Sv^. ; cd. 3, III. 398, li;?. 

 Had. Poliuarctic liegion. 



