325 



Brachyotus palustris. Short-eared Owl. The identity of the 

 European and American species is questionable. 



Vlula nelulosa. Barred Owl. Common to both. 



Progne purpurea. Purple Martin. American ; accidental 

 in Europe. 



BomhyrAlla Carolinensis. Cedar Bird. American ; acci- 

 dental in Europe. 



Cotyle riparia. Common to Europe and America. The iden- 

 tity of these birds has never been questioned ; but is worthy of 

 being investigated. 



Parus hicolor. Crested Titmouse. Common to both. 



Corvus corax. Raven. The European and American repre- 

 sentatives are presumed to belong to different species. 



Agelaius plmniceus. American; accidental in Europe. 



Struthus hyemalis. Snow Bird. American ; but found also 

 in northern Europe. 



Linota borealis. Mealy Redpoll. Common to both. Iden- 

 tity disputed. 



Linota linaria. Redpoll. Common to both. Identity dis- 

 puted. 



Plectrophanes Lapponicus. Lapland Longspur. Common 

 to both. I lentity disputed. 



Plectrophanes nivalis. Snow Bunting. Common to both. 

 Identity disputed. 



Phileremos alpestris. Shore Lark. Common to both. Iden- 

 tity disputed. 



Cory thus enudeator. Pine Grosbeak. Common to both. 



Loxia leucoptera. White-winged Crossbill. do. 



Erythrophrys Americanus. yellow-billed Cuckoo. Ameri- 

 can ; accidental in Europe. 



Tardus migraiorius. Robin. American ; accidental in Eu- 

 rope. 



Ectopistes migratoria. Passenger Pigeon. American ; ac- 

 cidental in Europe. 



Ortyx Virginiana. Quail. American; introduced in Europe. 



Lagopus albus. Willow Grouse. -\ The identity of Eu- 



Lagopus mutus. Ptarmigan. > ropean and American 



Lagojms rupestris. Rock Ptarmigan. ) species disputed. 



Squatarola Helvetica. Black-breasted Plover. Common to 

 both. 



