Annotated List 67 



ave. 6 yrs. May 3. 



Vernal depart. — May 7 (1907-1909) — May 16 

 (1905) ; ave. 6 yrs. May 11. 



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 

 its arrival as Dec. 5 to 22 ; Carter found many in- 

 dividuals on Dec. 25, 1901-03; Pennock at Keruiett 

 Square on Jan. 5, 191 2; 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," 

 "jay-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, 191 5, 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 p/incipalis Northern Raven. 

 Formerly resident, now extinct. Very rare (Barn- 

 ard) ; resident, now very rare or extinct (Mich- 



