84 The Ornithology of Chester County 
distinct species, but closely related to S.americana. 
This specimen remaining in the collection of Dr. 
Michener for twenty-four years, except for the brief 
time it was in the hands of Audubon; and finally 
presented it to the Smithsonian Institution and it is 
now in the U. S. National Museum. 
166. Piranga erythromelas Scarlet ‘Tanager, 
“black-winged redbird,” ‘‘redbird,’ “summer red- 
bird.” Tolerable common summer resident. Nest- 
ing data: Berwyn, June 1, 1900; three eggs. 
Berwyn: 
Arrival—Apr. 25 (1903)—May 16 (1897) ; ave. 
27 yrs. May 8. 
Common—May 5 (1906)—May 22 (1897); 
ave. 14 yrs. May 13. 
Departure—Sept. 15 (1913)—Sept. 25 (1894) ; 
ave. 7 yrs. Sept. 22. 
167. Piranga rubra rubra Summer ‘Tanager, 
“summer redbird.” Straggler from the south. Bar- 
nard considered it very rare, and Michener, a rare 
summer resident. Dr. Warren saw a pair May 25, 
1876, and a female Oct. 10, 1889, all in West Ches- 
ter, (Bds. Pa., 1890, 252). 
168. Probne subis subis Purple Martin, “black 
martin,” “martin,” “swallow.” ‘Tolerable common 
summer resident. Colonies have been established in 
the past at Oxford, Avondale, Marshallton, Len- 
ape, West Chester, Downingtown, Lionville, Byer’s, 
Malvern, Berwyn, Paulding’s bridge, Cupola and 
probably other points. Nidification commences soon 
after arrival and the set is complete by June 1. 
Berwyn: 
