16 Bulletin of the 



16. Haliaeetus leucocephalus (Linn). 



Bald Eagle. — Comparatively rare, usually observed in late fall and during 

 the winter. Generally a few individuals are seen on the river or at the Flats 

 in the winter. These feed on the ducks that frequent the open places in 

 the ice. A pair have been for many years on Elba Island, near the mouth 

 of the Detroit River. 



17. Falco columbarius (Linn). 



Pigeon Hawk. — A rare migrant in spring and fall. Of late years I have 

 not seen the bird. Two were shot in October, 1898, by C. H. Allis. 



18. Falco sparverius (,Linn). 



Am. Sparrow Hawk. — Abundant Summer resident. A few are usually 

 to be seen every winter. 



19. Pandion haliaetus carolinensis (Gmel). 



Am. Osprey. — Rather rare migrant. T have only observed it in early 

 spring and late fall. 



20. Strix pratincola (Bonap.). 



Am. Barn Owl. — Very rare. James B. Purdy records but one near 

 Plymouth. As recorded in the Auk, Vol. XIX., one was taken near the 

 lower end of the Detroit River. 



21. Asio wilsonianus (Less). 



Am. Long Eared Owl. — Not common, but probably more so than sup- 

 posed owing to its nocturnal habits. J. Clair Wood has taken several sets, 

 but none since 1887. 



22. Asio accipitrinus (Pall). 



Short Eared Owl. — Fairly abundant, migrant in spring and fall. Usually 

 observed in territory bordering the river or at the Flats. Does not breed. 



23. Syrnium nebulosum (Forst). 

 Barred Owl. — Not common, resident. 



24. Nyctala acadica (Gmel). 



Saw- whet Owl. — Rather rare, but owing to its small size and nocturnal 

 habits is not often seen. Hence the bird may be more abundant than is 

 generally supposed. Breeds. Mr. W. A. Davidson, of Detroit, has taken a 

 set of eggs in Oakland County. 



25. Bubo virginianus (Gmel). 



Great Horned Owl. — Resident, far less abundant than formerly, owing to 

 excessive persecution and the destruction of the larger timber. 



26. Megascops asio (Linn). 



Screech Owl. — Resident, common. The gray phase predominates here, 

 and I have rarely seen a bird in the red plumage. Lately one was brought 

 in from Macomb County. 



27. Nyctea nyctea (Linn). 



Snowy Owl. — A transient visitor in late fall and winter. During the 

 winter of iqoi-'o2 the bird was unusually abundant here, for the species, 



