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Annotated List 51 
ee  ———————_—_—e 
noticed as early as Aug. 22 (1878) in East Brad- 
ford Twp. Below are the averages from all sources: 
Aug. 22 (1878)-—Nov. 5 (1879); ave. 4 yrs. 
Sept. 14. 
Mar. 23 (1914)—Apr. 20 (1891); ave. 4 yrs. 
Apr. 
75. Accipiter velox Sharp-shinned Hawk, “arrow 
hawk,” “bird hawk,” “little chicken hawk,” “little 
hawk,” “partridge hawk,” “sharp-shin,” “sparrow 
hawk.” Tolerable common transient and sare, 
though regular, summer resident. Barnard, Mich- 
ener and Warren considered it as a resident, and 
it almost comes under this head since there are 
records for every month with the exception of Jan- 
uary. Matlack, Warren and Jackson have found 
it nesting near West Chester; one or two nests 
have been taken by Hughes, and Rotzell secured a 
set of four eggs from a cedar grove near Berwyn, 
May 23, 1889 (Ool. x, 300) on which occasion 
the writer was present. This set is now in the 
Philadelphia Academy of Natural Sciences. On 
account of the presence of individuals in early and 
late winter, no migration averages can be given, but 
a perceptible autumnal rnovement occurs from Sept. 
10 to; Oct: 16: 
76. Accipiter cooperi Cooper’s Hawk, “bird 
hawk,” “blue hawk,” “chicken hawk,” “little hen 
hawk,” ‘“long-tailed hawk,” “partridge hawk,” 
“pigeon hawk,” “pheasant hawk,” “privateer.” 
Common summer, occasional resident. Nidifica- 
tion commences about Apr. 20 in the vicinity of 
Berwyn, and the average date for the complete set 
