Vireo Philadelphius 187 MASS. (Middlesex Co.) 1875. Sept 7 - 1875 Sept. 7. few minutes I killed another also in an isolated willow tree. Not struck through the maple swamp but saw nothing worthy of note with the exception perhaps of a fly-catcher that was uttering his smashing note among the bushes. The swamps are very lovely now full of wildflowers and the lights & shadows dancing over the ferns in the little green glades. Coming from a piece of good fortune awaited me. In a large willow tree at the foot of the lane I heard a vireo scold: stopping and looking up, I soon spied a Vireo olivaceus, and very soon another, his mate perhaps hopped out in sight. While watching them I saw an adjoining twig shake and looking closely spied still a third vireo—a small one—so small indeed that at once suspected its identity and shot it quickly over. Picking it up I found to my delight that it was a bird new to our state fauna—my long sought little friend Vireo Philadelphius. On dissecting it proved a ♀ and a bird of this year. Arrived at the house by 8 A.M., and with Stone spent the forenoon hunting & recording birds. D. Striata was abundant anywhere this morning. C. Hart Merian arrived this noon from Woods hole and will stay one to-morrow with me. Woodcock an any place everywhere shuffled grass as usual in Sept not to be found. J.C. Webber started only one in an all days tramp last week, only a few returns Baltimore paper.