Vol. XXIV1 

 1907 J 



Fleming, Birds of Toronto, Canada. 



73 



128. Buteo platypterus. Broad-winged Hawk. — Regular migrant; 

 mature birds are rare, May 21 to June 30; young are abundant in the fall, 

 August 23 to October 1. 



129. Archibuteo lagopus sancti-johannis. American Rough-legged 

 Hawk. — Regular winter migrant, sometimes abundant. An immense 

 flight occurred in October, 1895; from the 26th to the 29th, the birds were 

 taken in dozens; I must have had over fifty brought to me in that time. 

 They were here in decreasing numbers till December 5; between these 

 dates I examined seven in the black phase of plumage. A female taken 

 August 25, 1894, is in changing plumage. A few birds remain through 

 January and February; latest, March 12, 1902. 



130. Aquila chrysaetos. Golden Eagle. — Rare migrant; one taken 

 October 24, 1896, one (a female) October 24, 1903, and one on December 

 15, 1904. There is but one record previous to 1896, but the species is 

 resident in Frontenac County (north of the eastern end of Lake Ontario). 



131. Haliaeetus leucocephalus alascanus. Northern Bald Eagle. — 

 Migrant and rare winter resident, October 24 to April 6; young birds are 

 not uncommon. A series of males is not available for measurement, but 

 a series of females is given below. 



Measurements in inches; X from fresh birds. 



132. Falco islandus. 1 White Gyrfalcon. — A female taken Novem- 

 ber 20, 1905, is the only record; this is a fairly light bird, comparable 

 with specimens from North Greenland. There appears to have been a 

 southern migration of gyrfalcons in Western Europe and North America 

 in 1905. 



133. Falco peregrinus anatum. Duck Hawk. — Regular fall migrant, 

 not common; young birds from September 18 to October 20; mature 

 birds are very rare, a female May 23, 1892, and a male September, 1902; 

 a young male in Mr. Maughan's collection, taken June 25, 1894, is light 

 ash color all over. 



134. Falco columbarius. . Pigeon Hawk — Regular fall migrant, 

 September 1 to December 6; not veiy common; mature birds are ex- 

 ceedingly rare. Given as a winter resident in 1853. 2 



135. Falco sparverius. American Sparrow Hawk. — Summer resi- 



1 Hierofalco candicans (Gm.). 



2 Canadian Journal, I, 1852-3, 169. 



