OLIVE-BACKED THRUSH. 



758a. Hylocichla ustulata swainsonii. 7% inches. 



Upper parts wholly olive gray, with no brownish 

 tinge; eye ring, sides of head and breast distinctly 

 buff; breast spotted with blackish. 



Song. Quite similar to that of the Veery. 



'Nest. Composed of leaves, grass and strips of 

 bark, located in bushes or small trees near the 

 ground; the four eggs are greenish blue spotted with 

 reddish brown (.90 x .65). 



Range. Eastern N. A., breeding from northern 

 U. S., to New Brunswick and Manitoba. 



GRAY-CHEEKED THRUSH. 



757. Hylocichla aliciae. 7 l / 2 inches. 



Quite similar to the preceding but with the eye 

 ring white and the sides of head and breast much 

 paler. 



Breeds in northern Canada and migrates through 

 the eastern states to Central America. 757a. Bick- 

 nell Thrush (bicknelli) is similar to the Gray cheeked 

 but smaller. It breeds in Nova Scotia. 



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