Io6 Chadbourxe on tke Summer Birds of the White Mts. [April 



29. Helminthophila peregrina. Tennessee Warbler. — One found 

 on Mt. Adams, at an altitude of 4000 feet, on Sept. 2, 1SS4. 



30. Dendroica caerulescens. Black-throated Blue Warbler. — 

 Not uncommon at the base, and as high as the second mile post of the 

 carriage road. Was not found above this. 



31. Dendroica coronata. Yellow-rumped Warbler. — Is common 

 through the country at the base of the mountain, and specimens were seen 

 at an altitude of 4240 feet in Tuckerman's Ravine on July 6, 1SS6. 



It seems about equally plenty from the base to the tree limit, but the few- 

 found on the low matted spruces higher up may have been only stragglers 

 in search of food. 



32. Dendroica castanea. Bay-breasted Warbler. — One was killed 

 at our camp in the Great Gulf early in July, 1SS6. and two broods of young 

 just out of the nest were found about two miles by carriage road from the 

 base. 



33. Dendroica striata. Black-poll Warbler. — Common about our 

 camp in the Great Gulf (altitude, 3140 feet), but did not occur far below it. 

 From the altitude of our camp as far as the shrubs extended it outnumbered 

 the common Junco. It was very abundant through the shrubs and low 

 matted spruces above the timber limit, but owing to lack of proper shelter 

 did not extend higher. I saw a single specimen, at an altitude of 4800 

 feet, in some stunted birches (Betula papyracea minor) and dwarf willows 



1 Salix cutleri). 



Young birds were heard on Jul}' 10 apparently just out of the nest, but 

 some young killed on July 26 had already begun to change into fall plu- 

 mage. The males were in full song on July 26, but on August 11 both old 

 and 3'oung birds had disappeared. 



34. Dendroica blackburniae. Blackburman Warbler. — Occurs at 

 the base of the mountain; one was heard on July 11, above the second 

 mile post of the carriage road, and another seen at 3800 feet altitude on 

 July S, 1SS6. 



35. Dendroica virens. Black-throated Green Warbler. — Common 

 about the base, but soon becomes rare, and was not seen above 2590 feet. 



[36. Geothlypis agilis, or G. Philadelphia. On July 7, 1886, I saw a 

 bird in a damp thicket, by the side of the carriage road, at an elevation 

 of 2640 feet, that was undoubtedly either a Connecticut or a Mourning 

 Warbler. In its slow, listless motions and peculiar way of flirting its tail, 

 it reminded me most of the former as seen in Massachusetts in autumn, 

 but the latter would seem to be far more likely to occur.] 



37. Sylvania canadensis. Canadian Warbler.- — One was seen on 

 the second mile, by carriage road, from the base of the mountain, on July 

 26, 1SS4. 



38. Troglodytes hiemalis. Winter Wren.— Common from base to 

 timber limit, wherever it can find suitable damp mossy woods. The 

 highest point at which it was seen was on the brook which runs from 

 the Snow Arch in Tuckerman's Ravine. Altitude. 4100 feet. 



39. Certhia familiaris americana. Brown Creeper. — Not common 



