Annotated List 63 
mon summer resident, formerly common. Nesting 
data: Parkesburg, May 20, 1885, collected by J. H. 
Matlack (Sharples MS.). The migration data for 
spring arrival is from all available sources, and the 
fall departure from my Berwyn notes: 
Arrival—Apr. 25 ERE) ap 9) VIGT2):* 
ave. 12 yrs. May 1. 
Departure—Sept. 14 Go6y. Oe: 19 (1887) ; 
ave. 4 yrs. Sept. 29. 
108. Chordeiles virginianus Nighthawk, “bird 
hawk,” “bullbat,” ‘“whipper-will.” ‘Tolerable com- 
mon summer resident, rather local in character. 
Breeding record: Paoli barrens, June 9, 1900, two 
young (Bailey, Cass., v 221). Migration records 
from all sources: 
Arrival—May 3 (1yoo)—May 27 (1903) ; ave. 
16 yrs. May 14. 
Depart.—Sept. 16 (1890)—Oct. 9 (1904) ; ave. 
4 yrs. Sept. 23. 
109. Chetura pelagica Chimney Swift, “chimney 
bat,” ‘“‘chimney bird,” ‘chimney swallow,” ‘chim- 
ney sweep,” ‘“‘swallow.’’ Common summer resident. 
Nesting date: Berwyn, June 1, 1914, five eggs, 
collection of F. L. B. Berwyn migration records: 
Arrives—Apr. 18 (18g1)—May 1 (1913); ave. 
33 yrs.) Apr. 25. 
Common—Apr. 19 (1891)—May 3 (1913); 
ave..28 yrs. Apr. 27. 
Bulk dep.—Aug. 11 (1916)—Oct. 11 (1900), 
ave. I3 yrs. Sept. 15. 
Last—Sept. 13 (1905)—Oct. 18 (1902); ave. 
19 yrs. Oct. 1. 
