OLIVE-BACKED THRUSH 



April, i8gs 

 April 28, 18Q4 

 August 30, 18Q4 



THESE thrushes are here in great 

 numbers the first part of May, one 

 of the commonest birds in the spring mi- 

 grations. They come around the house 

 constantly, in spite of the fact that there 

 is almost no cover for them. I have 

 studied them with great care, but find it 

 difficult to be certain whether there are 

 any gray-cheeked thrushes among them. 

 The orbital ring does not seem very dis- 

 tinct in many of them, and yet they all 

 have some, which the gray cheeks are not 

 supposed to have at all. They utter a 

 loud snapping chirp when alarmed. I 

 heard one singing a twittering song softly 

 to himself once, the way the tawny thrush 

 does. 



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