^909--i THE CAYUGA LAKE BASIN, N. Y. 425. 



1 8. In the Renwick marshes they nest in colonies varying from 

 three or four to a dozen pairs. The nests are frequently only a few 

 feet apart, built upon stumps, brush piles, logs and heaps of debris. 



XXXIII. Order RAPTORES. The Birds of Prey. 



55. Family Cathartid^. The American vultures. 



200 (325). Cathartes aura septentrionalis (Wied). Turkey vulture. 

 Mr. C. J. Hampton saw eight individuals hovering above a rank 



woodchuck on July i, 1900, at Cosad, N. Y. One specimen was shot. 

 On June 20, 1908, Mr. J. T. Lloyd reported one from the Renwick 

 flats at Ithaca. 



56. Family Buteonid^. The Hawks and Eagles. 



201 (331). Circus hudsonius (Linnaeus). Marsh hawk. 

 Common summer resident. The average date of spring arrival 



is March 27, the earliest being Alarch 25, 1906. They remain in 

 Autumn until the last of October, the latest fall record being Octo- 

 ber 28, 1908. The only nesting records of this species which we 

 have are : a nest and eggs found May 2y, 1904, and a nest with five 

 young found June 29, 1906. 



202 (332). Accipiter velox (Wilson). Sharp-shinned hawk. 

 Common summer resident and occasionally taken in winter. It 



is common from the last of March until the first of November. The 

 only breeding record is a nest of young which took wing on July 16, 

 1906. 



203 (333). Accipiter cooperi (Bonaparte). Cooper's hawk. 

 Common summer resident, n^ore abundant in the fall. The aver- 

 age date of spring arrival is March 25, the earliest, March 17, 1907. 

 They remain in the fall until November i. 



204 (334). Astur atricapillus (Wilson). Goshawk. 

 Uncommon winter visitant. A specimen was taken near West 



Candor, November 26, 1907, by C. S. Gridley. Mr. Fuertes reports 

 that he sees one or more every winter. It is recorded in the Auburn 

 List as an " uncommon winter visitor." 



PROG. AMER. PHIL. SOC, XLVIII. I93 CC, PRINTED JANUARY 7, I9I0. 



