36 



ACVIPITRES. 



FALCONIU^. 



FALCONID.E. 



Falco candicans, J. F. Gmelin*. 

 THE GREENLAND FALCON. 



Falco gyrfalco (in part)f. 



Falco, LinmeusX. — Beak slioit, curved from its base; on each cutting edge 

 of the upper mandible a strong projecting tooth. Legs robust ; tarsi short : 

 toes long, strong, armed with curved and sharp claws. Wings long and pointed ; 

 the first and third quill-feathers of equal length, the second quill-feather the 

 longest. 



No question in ornithology perhaps has been so much dis- 



■" Syst. Nat. i. p. 275 (1788). f Not Falco 'jyrfalco, Linnaeus. 



:J: Syst. Nat. Ed. 12, i. p. 124 (176G). 



