66 May 20 Phila. roof of one-story station; heads of crowd of people not more than 6 feet beneath); Purple Grackle (everywhere, fearless, about 25); Chipping Sparrow (1); Blackburnian Warbler (1); Bluebird (2); Swift (12); Mourning Dove (2). May 21 This forenoon the Stones took us out by trolley about 8 miles west of Philadelphia -- open farming country with tracts of woods here and there and now and then a little street bordered by stucco or wct houses. We took a circuit of about three miles, zigzagging slowly. The first hour we were most active, and from 9:30 to 10:30, by exact pencil census, noted the following: Song Sparrow 4, English Sparrow 4, Field Sparrow 2, Purple Grackle 2, Great Crested Flycatcher 2, Swift 10,