Annotated List 89 
Arrival—May 1 (1904)—May 16 (1896) ; ave. 
3 yrs. May 9. 
182. Lanivireo solitarius solitarius Blue-headed 
Vireo. ‘Tolerable common transient. 
Berwyn: 
Spring arrival—Apr. 17 (1916)—May 10 
(1890) ; ave. 10 yrs. Apr. 27. 
Fall arrival—Sept. 23 (1890)—Oct. 16 (1891) ; 
ave. 5 yrs. Oct. 6. 
183. Vireo griseus griseus White-eyed Vireo. 
Rather local, not common summer resident. Nest- 
ing data: Berwyn, June 13, 1888; four eggs. 
Berwyn: 
Arrival—May 5 (1892)—May 23 (1915) ; ave. 
6 yrs. May 12. 
Departure—Sept. 4 (1894)—Oct. 1 (1906); 
ave. 3 yrs. Sept. 18. 
184. Mniotilta varia Black and White Warbler, 
“creeper,” “little sapsucker.’”’ Rather abundant 
transient and tolerable common summer resident, 
especially on the Chester valley and Brandywine 
hills; though it is probable a great proportion do 
not breed. Rhoads records it feeding its young at 
Westtown in 1878 (B. N. O. C., iv, 234) ; Everett 
took the first set of eggs June 10, 1885, near Mal- 
vern (Orn. and QOol., xii, 25); Ladd found two 
sets now in the Norris collection, June 6, 1886 and 
May 29, 1887, Brandywine hills (Orn. and Ool., 
xli, 150); Sharples has a personally collected set 
from along the Brandywine, and Jackson found a 
nest near the latter locality June 26, 1903, another 
near Glenlock, and one with young June 6, 1890, 
