OF ARTS AND SCIENCES. 1 1 1 



spruce. In winter, there is a slight movement southward, and 

 into the valleys"from these upper regions. 



130. Dryobates pubescens mediamis (Swains.). 



Downy Woodpecker. 



A common permanent resident throughout the Transition 

 and sub-Canadian life zones, up to about 3,000 feet on the 

 mountains, though occasional birds go still higher into the 

 small tree growth, and on Aug. 1, 1899, I observed one in 

 Tuckerman's Ravine, Mt. Washington, at over 4,000 feet among 

 the balsams. In winter there seem to be nearly as many of 

 these birds on the mountains as in summer, but those which I 

 have observed at this season have all been below 3,000 feet. 



131. Picoides arcticus (Swains.). Arctic Three-toed 

 Woodpecker. 



A rather rare permanent resident of the upper Canadian re- 

 gions of the White Mountains and the northern part of the 

 state ; occasional also in fall and winter in the southern part of 

 the state. In summer, its range is practically that of the fol- 

 lowing species in the White Mountains, but it seems less com- 

 mon. Dr. A. P. Chadbourne did not observe it during his 

 White Mountain trips and I have seen it only on two occasions, 

 these while on a trip over the Carter-Moriah range, in early 

 September, 1901. Frank Bolles ('93b, p. 155) attests its pres- 

 ence on Mt. Passaconaway in summer, and H. D. Miuot ('77) 

 records that he has found the nest in the White Mountains. F. 

 A. Bates ('91) records two nests with young in late June from 

 the mountain forests at the head waters of the Pemige- 

 wasset. Dr. Walter Faxon also tells me that he saw a bird of 

 this species on Mount Moosilauke on October 4, several years 

 ago. Farther south, Dr. A. L,. Reagh has observed two birds 

 at Newfound Lake, on August 18, 1899. W. B. O. Peabody 

 ('41 p. 338) states that he is informed by Dr. Brewer that it 

 breeds at Keene, but while an outlying pair may have bred on 

 the northern slope of Mt. Monadnock, it certainly has not since 

 been found to breed so far south, though Mr. G. H. Thayer 

 ( : 02) records a female observed on May 18, 1899, at Chesham, 



