BIRDS 
289. Olive-backed Thrush. Hylocichla ustulata 
swainsom. Regular migrant, abundant. 
290. Hermit Thrush. Hylocichla guttata pallast. 
Regular migrant, abundant; probably a rare summer 
resident. 
291. Robin. Planesticus migratorius migratorius. 
Summer resident, abundant; breeds; irregular win- 
ter resident. 
292. Bluebird. Sialia sialis sialis. Summer resi- 
dent, abundant; breeds. 
REFERENCES. 
R. Ridgway. The Birds of North and Middle 
America. Bull. U.S. Nat. Museum, No. 50. 
1901-1911. 
R. Ridgway. A Manual of North American Birds. 
Philadelphia. 1887. 
F. M. Chapman. Handbook of the Birds of Eastern 
North America. New York and London. 
1912. 
T. MclIlwraith. The Birds of Ontario. William 
Briggs, Toronto, 1894. 
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