30 CHECK LIST OF THE 



A conimon visitor in spring and autumn, probably a summer resi- 

 dent in the northern portion of the Province. 



They arrive early in April and the bulk have departed by the end 

 of November. 



One of our most beneficial birds, its food consisting almost entirely 

 of mice and grasshoppers. 



Genus AQUILA. 



141. Golden Eagle. 



(Aquila chrysaetos.) 



An irregular visitor to southern Ontario, probably resident in the 

 unsettled portions of the north. 



Genus HALI^ETUS. 



142. Eald Eagle. 



(Haliaeetus leucocephalus.) 



A resident species, which until a few years ago regularly bred in 

 certain localities along the shores of our lakes, but which has now 

 retired to the quiet of the interior to raise its young, visiting southern 

 Ontario in winter. 



Subfamily FALCONINvE. Falcons. 



Genus FALCO. 



Subgenus HIEROFALCO. 



*143. White Gyrfalcon. 



(Falco islandus.) 



An accidental visitor. 



Subgenus RHYNCHODON. 



144 Duck Hawk. (Peregrine Falcon.) 



(Falco peregrinus anatum.) 



A regular but not a common autumn visitor to southern Ontario. 

 Rarely seen in spring. May possibly breed in the northern part of 

 the Province. 



Subgenus iESALON. 



145 Pigeon Hawk 



(Falco columbarius.) 



A common visitor in autumn, not very frequently seen in springs 

 breeds in the north and retires southward by the end of September. 



