Helminthophila ruf loai>illa . 



East Lexington, Llass. 

 1893. A Nashville Warbler on the knoll just described (Faxon 



May 18, and I had followed up the brook that empties into the pond 



for half a mile or more when we reached a low hill half sur- 

 rounded by- the brook) had a curious song which puzzled us 

 completely and excited us greatly until we saw the bird. For 

 a long time he sang tohit-tohit-tohit-tchit-tohit in dry me- 

 tallic tones-all the notes given with equal emphasis and in 

 the same key. This song resembled that of the Chiff-chaff of 

 Europe but was shorter and more wiry In tone. It proved how- 

 ever to be merely a prelude to the usual song which the bird 

 finally tacked on the end of it once or twice. His chirp was 

 also abnormal and characterized by. the saaae dry, metallic 

 quality as the notes just described. He had a mate a^id ap- 

 parently had chosen the knoll as a breeding ground. 



