INTRODUCTION. 



H. Irregular or casual Visitants from the Western Province. 



1. Sialia arctica. (Winter.) 



2. Myadestes townsendi. (Winter.) 8. 

 Rhynchophanes maccowni. (Winter.) 9. 

 Zonotrichia querula. (Spring and 10. 



fall.) 11. 



5. Junco oregonus. (Fall.) 12. 



(J. Scolecophagus cyanocephalus. (Win- 13. 



ter.) 14. 



7. Pica hudsonica. (Winter.) 



Sayornis sayl. (Season not known.) 

 Bubo subarcticus. 

 Falco mexicanus. (Fall.) 

 Buteo krideri. (Summer.*) 

 Buteo calurus. (Spring.) 

 Archibuteo 1'errugineus. (Fall.) 

 Anas cyaaoptera. 



I. Regular Residents or Visitants wJiicli intrude from the Westward. 



a. Observed only in Summer. 



1. VIreobellii. (Breeding.) 



2. Spizellapallida. (Breeding.) 



3. Xanthocephalus xantbocephalus. (Breeding.) 



4. Chordeiles benryi. (Breeding?) 



b. Observed only in Winter, or during migration. 



5. Coccothraustes vespertinus. 



(i. Ammodramus lecontei. (Breeding?) 



7. Colymbus californieus. 



c. Observed irrespective of season. 



8. Chondestes grammaca. (Breeding.) 



9. Sturnella neglecta. (Breeding.) 



10. Buteo swainsoni. (Breeding.) 



11. Pediocaetes campestris. (Breeding.) 



J. Stragglers and doubtful species, the former including those of 

 which not more than one specimen has been taken or observed. 



1. Sialia arctica. W. 



2. Myadestes townsendi. 



3. Parus hudsonicus. N. 



4. Junco oregonus. N. 



5. Passerina ciris. S. 



6. Pica hudsonica. N. 



7. Sayornis sayi. W. 







* Probably breeding. 



W. 



8. Buteo calurus. W. 



9. Buteo krideri. N. W. 



10. Buteo barlani. S. 



11. Asturnia plagiata. S. 



12. Ardea occidentalis. S. 



13. Pelecanus fuscus. S. 



14. Phalacrocorax mexicauus. 



