72 The Ornithology of Chester County 
individual in his West Chester-Coatesville Christ- 
mas census, 1901-02-03 (Bd. Lore). 
Spring arrival—Feb. 16 (1909)—Mar. 19 
(1905); ave. 9 yrs. Mar. 5. 
Fall arrival—Oct. 24 (1915)—Nov. 22 (1896) ; 
ave. 3 yrs. Nov. 8. 
133. Quiscalus quiscula, quiscula*® Purple Grack- 
le, ‘‘blackbird,” ‘crow blackbird.” Abundant summer 
resident; not rare resident in mild winters. Gre- 
garious, nesting in colonies and gathering in im- 
mense numbers previous to the autumnal flight. 
Nidification begins Apr. 15; average date for com- 
plete set, Apr. 26. Berwyn data on the migration 
of this bird is unusuallv complete. 
Arrival—Jan 7 (1890)—Mar. 16 (1885) ; ave. 
33 yrs. Feb. 27. 
Bulk arriv.—Feb. 13 (1890)—Mar. 27 (1885) ; 
ave. 32 yrs. Mar. 9. 
Bulk depart—Sept. 24 (1891)—Nov. I1 
(1889) ; ave. 25 yrs. Oct. 20. 
Last seen—Oct. 6 (1887)—Dec. 24 (1889); 
ave. 32 yrs. Nov. 5. 
134. Quiscalus quiscala eaneus Bronzed Grackle. 
Straggler. Dr. Montgomery took a specimen in 
East Bradford, Apr. 30, 1889, and Dr. Chapman 
found one closely approaching this form in a series 
of skins taken in the breeding season in Chester 
county by Dr. B. H. Warren and G. W. Roberts. 
135. Pinicola enucleator leucura Pine Grosbeak. 
Rare winter visitant; occurs only in the most severe 
weather. Listed by Michener, Warren and Pen- 
nock. 
