240 BIRDS OF PENNSYLVANIA 



173. Contopus borcalis (Swains.). 



Olive-sided Flycatcher. 459. Rare spring and fall migrant. 



174. *C. virens (Linn.). 



Wood Pewee. 461. 



175. Empidonax flavivenlris Baird. 



Yellow-bellied Flycatcher. 403. Spring and fall migrant 



176. *E. acadicus (Gmel.). 



Acadian Flycatcher. 465. 



177. E. pusillus traillii (Aud.). 



Traill's Flycatcher. 466. Spring and fall migrant 



178. E. minimus Baird. 



Least Flycatcher. 467. Rare spring and fall migrant 



Family ALAUDID^E. The Larks. 



179. Otocoris alpestris (Linn.). 



Horned Lark. 474. Winter resident in eastern Pennsylvania. 



180. *O. alpestris praticola Hensh. 



Prairie Horned Lark. 4745. Breeds sparingly in Erie county, near Erie 

 city, where Mr. Geo. B. Sennett and the writer have obtained the young 

 in stubble-fields in July, 1888. 



Family OOKVIDJE. The Crows and Jays. 



181. *Cyanocitta cristala (Linn.). 



Blue Jay. 477. Resident ; most numerous in spring, summer and fall. 



182. Perisorcus canadensis (Linn.). 



Canada Jay. 484. A rare straggler, in winter to the northern counties of 

 Pennsylvania. Turnbull. 



182. Corvus corax sinuatus (Wagl.). 



American Raven. 486. Formerly resident ; now very rare or extinct 



183. *C. americanus Aud. 



American Crow. 488. Resident 



184. *C. ossifrayus Wils. 



Fish Crow. 490. Summer resident in the neighborhood of Philadelphia. 

 Gentry. 



Family IcTERiDyE. The Blackbirds, Orioles, etc. 



185. *Dolichonyx oryzivorus (Linn.). 



Bobolink. 494. Mr. Geo. B. Sennett informs me that this bird is a regular 

 breeder in Crawford and Erie counties, in the north-western part of this 

 State. In eastern Pennsylvania I have observed this bird only as a 

 common spring and fall migrant 



186. *Molothrus ater (Bodd.). 



Cowbird. 495. A few sometimes linger during mild winters. 



187. Xanthocephalus xanthocephalus (Bonap.). 



Yellow-headed Blackbird. 497. Accidental, "Dr. Jackson mentions that 

 this species is occasionally seen along the Alleghany mountains, where 

 a llock appeared in the autumn of 1857. Mr. John Krider shot a young 

 male near Philadelphia. Turnbull. 



188. *A.fjelaius pliceniccus (Linn.). 



Red-winged Blackbird. 498. 



189. *Sturnella magna (Linn.). 



Meadowlark. 501. Resident 



190. * Icterus spurius (Linn.). 



Orchard Oriole. 506. 



