Annotated List 67 
1 ee ee reac esc re ee emGeeT ARSENE 
ave. 6 yrs. May 3. 
Vernal depart—May 7 (1907-1909 ) —May 16 
(1905) ; ave. 6 yrs. May Il. 
Dr. Montgomery never observed it in the fall, and 
I have but one fall capture at Berwyn, Oct. 15, 
1889. 
120. Otocoris alpestris alpestris Horned Lark, 
“field lark,” “skylark.’’* Tolerably common winter 
visitant; gregarious and irregular. Barnard gives 
‘ts arrival as Dec. 5 to 22; Carter found many in- 
dividuals on Dec. 25, 1901-03; Pennock at Kennett 
Square on Jan. 5, 1912; Fowler at Cheyney, Feb. 
12, 1907; Pennell at Downingtown on Feb. 23, 
1902, and Feb. 20-26, 1903; and the latest date in 
which it has been seen at Berwyn is Mar. 16 
(1896). 
121. Cyanocitta cristata cristata Blue Jay, “jay,” 
‘Gay-bird.”” Common resident. Not present at Ber- 
wyn during the winter of 1903-04, nor at Westtown 
winter of 1910-11. Nesting data: Devon, Apr. 
25, 1915, six eggs. An interesting flight of this 
species occurred over my home between 7.30 and 
10.30 A. M. on Oct. 7, 1917. The birds were in 
flocks of from two to forty individuals, flying with 
surprising rapidity southwest in one track at an esti- 
mated elevation of 300 feet above the hill. These 
flocks were sometimes many minutes apart and the 
birds could be occasionally heard uttering the char- 
acteristic ‘‘keck.”’ 
122. Corvus corax principalis Northern Raven. 
Formerly resident, now extinct. Very rare (Barn- 
ard); resident, now very tare or extinct (Mich- 
