50 The Ornithology of Chester County 
(Wils-Bull., 70, 48). 
72. Zenaidura macroura carolinensis Mourning 
Dove, “turtle dove,” “wild dove,” ‘‘wild pigeon.” 
Common summer resident, occasional resident. Ber- 
wyn arrival and departure. 
Feb. 24 (1906)—Apr. 6 (1914); ave. 17 yrs. 
Mar. 21. 
Sept. 26 (1910)—Nov. 30 (1912) ; ave. 13 yrs. 
Octon: 
The first set of eggs is completed by Apr. 20. 
73. Cathartes aura septentrionalis Turkey Vul- 
ture, “buzzard,” “turkey buzzard.” Common sum- 
mer resident, more or less regular resident in the 
southern part of the county. It has been found nest- 
ing by Michener, Matlack, Maris (Orn. and Ool., 
ix, 3); Stone (Am. Nat., 1885, 407); Pennock, 
Warren, Jackson, Burns and others, especially on 
the hills encompassing the Brandywine and Chester 
valleys. My Berwyn records of first and last seen: 
Mar. 16 (1897)—Apr. 13 (1894-1909) ; ave. 
15 yrs. Apr. 4. 
Oct. 11 (1907)—Dec. 1 (1897-1900) ; ave. 20 
yrs. Oct.)23. 
It has also been noted on Jan. 30, 1906, and Feb. 
25, 1901, doubtless birds that have wintered near 
by. Nests with eggs are found by May 5 to 20. 
74. Circus hudsonius Marsh Hawk, “bog trot- 
ter,” “hen hawk.” Not common transient and 
rather rare winter resident. It has been noted in the 
vicinity of Kennett Square, Westtown and West 
Chester during the winter. A pair of adults were 
shot at Berwyn, Apr. 20, 1891, and it has been 
