HOOPER 



NATATOEES. 



THE HOOPER, 



Anas cygnus, 



ferns, 



ELK, OR WHISTLING SWAN. 



Cygnus ferus. 



Wild Swan, PENN. Brit. Zool. vol. ii. p. 218. 

 MONTAGU, Ornith. Diet. 

 BEWICK, Brit. Birds, vol. ii. p. 281. 

 FLEM. Brit. An. p. 126. 

 SELBY, Brit. Ornith. vol. ii. p. 278. 

 JENYNS, Brit. Yert. p. 227. 

 GOULD, Birds of Europe. 

 Cygne sauvage, TEMM. Man. d Ornith. t. ii. p. 828. 

 pt.iv.p.526. 



CYGNUS. Generic Characters. Beak of equal breadth throughout its 

 length ; higher than wide at the base ; depressed at the point ; both man- 

 dibles furnished along the sides with transverse serrated lamellae. 



Cygnus ferus, 



Anas cygnus, 

 ius musicus, 



