60 The Ornithology of Chester County 
complete set of eggs. My Berwyn dates for arrival 
and departure: 
May 3 (1896)—May 26 (1900); ave. 10 yrs. 
May 17. 
Aug. 29 (1896)—Oct. 5 (1895); ave. 10 yrs. 
Sept. 14. 
98. Coccyzus erythrophthalmus Black - billed 
Cuckoo, “kow bird,” “rain bird,” “rain crow.” 
Not common summer resident. Arrival, May 9 
(1915)—May 25 (1908); ave. 5 yrs. May 19; 
departure, Sept. 22 (1906). I have found nests 
with incubated eggs on June 15, 1885: Aug. 6, 
1886; July 15 and 28, 1887. 
99. Ceryle alcyon Belted Kingfisher, “‘kingfisher,” 
“rattler.”’ Not common summer resident; resident 
in open winters. In point of numbers, this is one 
of our scarcest birds though always conspicuous. In- 
deed it is possible for a single individual in the 
course of a year or two, to practically exterminate 
it over a considerable area; a demonstration of this 
occurred near Berwyn a few years since, in the 
interest of a trout pond. 
100. Dryobates villosus villosus Hairy Wood- 
pecker, ‘“‘sapsucker.”” "Tolerable common resident, 
somewhat local in distribution. Montgomery and 
Sharples found it only as a winter visitant. Phil- 
lips took a set of eggs in Kennett Twp. Apr. 20, 
1868 (F. and S., vi, 57); I have found it breeding 
in Tredyffrin Twp. on several occasions, and it is 
also reported nesting in Willistown (Hall, Orn. 
and Ool., ix, 137); Oxford (Burn MS.), and the 
Welsh mountain region (Hunt MS.). 
