Senirus Norbacaum's 179 MASS. (Middlesex Co.) 1875. Aug. 13. contain very numerous, and start with the water thrushes are I think only Dendroicidal species which have come down from the N. as yet. Birds are doing a little now I think than they were several week back. On the early morning and again at sunset I hear the Baltimore, and three species of Vireo - flaviceps, gilvus et olivaceus; an occasional robin also and sometimes a few notes from Contopus virius. Aug. 17 Cloudy with wind S. E. Took the 9.30 boat for Long is. Boston harbor and arriving at about 10 A.M. walked over to the marsh and began operations. Immense numbers of small birds were flying and I saw one N. Hendersonii, three or four large plovers, a few Actitis tricolors, Bartramus, and two large flocks of Gambetta flaviceps. Shot during the day twenty birds in some 28 shots spending my bird each time and commencing the morning with two double shots in succession. Got four specimens for mounting, three Aegialitis semipalmatus and a very fine adult, Irenza Bonapartii. Nearly all Vth. geepos that I saw or shot were E. petrifex. The difference in the notes of the two species is very tangible; that of I. minutitta is a mellow tweet tweet; while the semipalmatus species utters a brown pep, pep; krep, krep, almost like the peculiar note of I. maculata. The querulous chatter heard from a flock while feeding is I think produced by this