OLIVE-BACKED THRUSH 



April, 1893 

 April 28, 1894 

 August 30, 1894 



* I A HESE thrushes are here in great 

 -1 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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