28 UPTON, MAINE 1872 June 2 -14 Dendroica virens. Not common. D. caerulescens. Rather frequent in some parts of the woods. D. blackburniae. Found them abundant and migrating on our arrival, frequenting in small companies low bushes, brush piles and apple orchards: by the 5th all had left or retired to the tops of the forest trees. (Quite common breeding 73) D. castanea. Migrating on our arrival, by the 5th their numbers were thinned nearly one half, (though they were still very numerous) and they settled for the season. Detected the difference in song between this bird and D.tigrina; the notes of the present species are fewer and quicker (like zee zee-zee) than those of the Cape May whose song bears much closer resemblance to that of D.striata, being composed of four or five feeble, though withal shrill repetitions of the syllable zee uttered in rather a slow measured tone and with a rising inflection. D. striata. Not common and migrating up to the 5th when they disappeared. Saw them all the way up from Bethel. D. tigrina. Common all the way up from the Notch. In dark and rainy weather they came out of the woods and fed among the thickets of low fir savins, hanging head downward at the extremity of the branches often continuing in one position for many moments apparently picking out minute insects from under the leaves. In a clump of blossoming plum trees directly under our window, in the garden, we were always sure of finding several of them: hither they resorted in company with numbers of Humming-birds, which, however, they were continually chasing about: