54 The Ornithology of Chester County 



valley and Brandywine hills (Burns, Mon. Broad- 

 winged Hawk, Wils. Bull., Nos. 76-77). Nidifica- 

 tion commences by April 25, and the average date 

 for complete set is May 15. 



81. Archibuteo lagopus sancti-johannis Rough- 

 legged Hawk, "tiger hawk." Rather rare winter 

 visitant, though it is included in all but Montgom- 

 ery's list. In the winter of 1879, while hunting 

 along the Brandywine, Dr. Warren observed seven 

 individuals at one time (Bds. Pa., 92). I have, 

 however, only nine or ten specific records, ranging 

 from Dec. 9, 1886, to Mar. 22, 1914 (Fisher, 

 Hawks and Owls, 91 ; Ehinger, Bd. Lore, xviii, 

 28; Ms. from Thomas and DeHaven). 



82. A quila chrys&tos Golden Eagle. Straggler. 

 Considered very rare by Barnard, Michener, War- 

 ren and Pennock. According to Rhoads, one was 

 shot at Oxford in 1 88 1 or 1882 (Stone, Bds. E. Pa. 

 and N. J., 87). Another in immature plumage was 

 winged at Berwyn, Apr. 7, 1894, by George Quig- 

 ley, and kept in confinement for some years at the 

 Sorrel Horse tavern (Abst. D. V. O. C., ii, 22). 



83. Haliaetus leucocephalus lencocephalus bald 

 Eagle. Transient and occasional winter visitant, at 

 least rare enough to excite general comment when- 

 ever reported. Sept. 9, 1915, to May 22, 1910 

 (Cass., v, 47; xii, 55; xiv, 41; xvi, 47; Bd. Lore, 

 xii, 29; MS. Burns and Thomas). Dr. Warren 

 narrates that about 1839, B. M. Everhart found 

 within the present borough limits of West Chester 

 a nest with one eaglet which he kept for some time. 

 A nest was located on the North Valley hills, near 



