112 CATALOGUE OF EGGS OF BRITISH BIRDS. 



iii. Cygnin^. 



1. CYGNUS. 



a. Olor. 



1. Cygnus ferus. The Whistling Swan. 



Anas cygnus, Linn.; Schinz, Eier, t. 16. f. 1. 

 Cygnus ferus, Leach ; Hewit. Brit. Ool. pi. 129, f. 1. 

 Cygnus musicus, Bechst.; Thienem. Fortpji. Vog. Eur. t. 23. 



f. 1. 

 Cygnus raelanorhjTichus, Wolf und Meyer. 

 Olor musicus, Wagl. 

 Cygnus olor, Pall. 

 Cygnus xanthorhiuus, Naum. 

 Whistling Swan or Wild Swan, Mont. 

 Wild Swan, Bew. 



Whisthng Swan, Selby ; Lew. Br. B. Sf Eggs, pi. 48. 

 The Hooper, Elk, or Whistling Swan, Yarr. 

 Swan, Hewit. Eggs Brit. B. pi. 96. f. 1. 



Gunther, Eierw. t. 84. 



? 2. Cygnus americanus. The American Swan. 

 Cygnus americanus, Sharpless. 



h. Cygnus. 



3. Cygnus olor. The Mute Swan. B.M. 



Anas olor, Gmel. 



Cygnus gibbus, Bechst.; Thienem. Fortpji. Vog. Eur. t. 2,'l 



f. 2; Schinz, Eier, t. 17. f. 1. 

 Cygnus olor, Boie; Naum. Eierw. t, 9. f. 1 ; Lefevre. Ool. 



Eur. t. . 

 Cygnus mansuetus, Flem. 

 Cygnus sibilus, Pall. 

 Mute Swan, Bew. ; Yarr. 

 Tame Swan, Penn. 



?4. Cygnus immutabilis. The Changeless Swan. 



Cygnus immutabilis, Yarr. 

 Cygnus olor immutabilis, Schleg. 

 Polish Swan, Yarr. 



