OF ARTS AND SCIENCES. I8I 



A common summer resident throughout the Transition val- 

 ley bottoms, frequenting the courses of shaded streams. In the 

 Connecticut valley of southwestern New Hampshire, this is a 

 very common bird, nesting along the river banks among the rank 

 growth of Equisetum. It is common in the White Mountain val- 

 leys on both sides of the main range, and follows up the side 

 branches of the rivers to about 1,500 feet, thus reaching well in- 

 to the lower edge of the sub-Canadian area. At Intervale, these 

 thrushes occur in bushy places all over the valley floor of the 

 Saco, and numbers follow back the little side streams well up 

 onto the mountain sides, so that it is possible in some places to 

 hear the Hermit, the Olive-backed and the Wilson's Thrushes 

 all singing at once. I observed a single bird singing in the wet 

 woods at 1,700 feet on June 16, 1902, at Jackson. 



Dates : May 10 to September 8. 



249. Hylocichla aliciae (Baird). Gray-cheeked 

 Thrush. 



A rare migrant. Mr. G. H. Thayer writes me of a male shot 

 at Dublin on Oct. 2, 1899, by Mr. L,. A. Fuertes, who identified 

 it as of this species. 



250. Hylocichla aliciae bicknelli Ridgw. Bickneee's 

 Thrush. 



A common summer resident of the upper Canadian zone on 

 the higher mountains of central New Hampshire. Mr. Brad- 

 ford Torrey, in 1882, was the first to call the attention of orni- 

 thologists to the presence of this bird in summer on the White 

 Mountains, and Mr. William Brewster ('83a) took the first New 

 England specimens on Mount Washington in the same year. It 

 is plentiful in the damp, stunted fir growth above 3,000 feet on 

 all the larger mountains, and on the Presidential range occurs 

 as high as the upper limit of stunted tree growth. South of the 

 main ranges, it doubtless breeds in small numbers on the Sand- 

 wich range, where Mr. F. H. Allen has found birds in late June 

 on Tripyramid (4,184 feet) and Black Mountain (3,900 feet) as 

 well as on Osceola and Tecumseh (both over 4,000 feet) and 

 has also heard them singing June 7, 1900, near the top of Mt. 

 Chocorua (3,508 feet) the easternmost mountain of this range. 



