36 



RAPTORE8. 



FALGONIDJS. 



FALGONID.E. 



THE GYR-FALCON. 



Falco gyrfalco. 



Falco Islandicus, Gyrfalcon, PENN. Brit. Zool. vol. i. p. 217. 



n Jerfalcon, MONT. Ornith. Diet. 



n Gyrfalco, BEWICK, Brit. Birds, vol. i. p. 1 5. 



Gyrfalco candicans, FLEM. Brit. An. p. 51. 



Falco Islandicus, SELBY, Brit. Ornith. vol. i. p. 36. 



JENYNS, Brit. Yert. p. 81. 



}) GOULD, Birds of Europe. 



Faucon Gerfaut, TEMM. Man. d'Ornith. vol. i. p. 17. 



FALCO. Generic Characters. Beak short, curved from its base ; on each 

 cutting edge of the upper mandible a strong projecting tooth. Legs ro- 



