1874.] 329 [Ridgway. 



18. Scolecopliagus ferrugineus. Extremely abundant, at times. 



19. Sphyropicus varius.* Very common. 



20. Fulix marila. Abundant. 



21. " affinis. " 



22. " collavis. " 



23. Bucepliala americana. " 



24. " a/6eofe. " 



25. Larus argentatus. " 



26. " delawarensis. " 



27. Chrcecocephalus Philadelphia. Common? 



28. Colymbus torquatus. Abundant. 



29. " septentrionalis. Common? 



30. Podiceps cornutus. " ? 



31. " cristatus. " ? 



32. " holbollii. " ? 



&. Winter visitants — of irregular occurrence. 



1. tParus atricapillus. Very rare? 



2. Collurio borealis. " " 



3. Zoxm americana. Sometimes common. 



4. " leucoptera. " " 



5. Pinicola canadensis. Extremely rare. 



6. JEgiothus linaria. " " 



7. Plectrophanes nivalis. Extremely rare — accidental? (1 spec.) 



8. " lapponicus. Extremely abundant. 



9. '' pictus. Common on the prairies. 



10. Scolecopliagus cyanocephalus. Accidental. 



11. Nyctale acadica. Extremely rare ? 



12. Nyctea nivea. Common on the prairies. 



13. Asiur atricapillus. Rare. 



14. Aquila canadensis. Rather common. ' 



15. Archibuteo sanctijohannis. Abundant. 



SUMMARY OF WINTER BIRDS. 



Found irrespective of season 75 



Found only in winter . . . . . . . .47 



Total number of species in winter . . 122 

 [The number much increased (to about 150) in mild winters by 

 accessions from lists C. b, and D.] 



