180 MASS. (Middlesex Co.) 1875 Aug. 17 Latter bird but I am not yet certain. The zip, zip of P. Bonaparti is peculiar and distinguishable. Saw a single Strepsilas interpe, its flight is a single short battle of four or five notes run together. Took dinner at the Sea View house and returned on the 5.45 boat. Swallows of all four species (also the chimney swifts) literally swarmed on the island, Aug.24 Clear and cool with N wind. The 'dog days' came to an end yesterday when we had the first really cool day since this month came in. This morning I took a turn up to the swamps and returned at noon with a few birds among them a Gambetta flaps which I shot in the pond hole near Mc. Carthy's. In the maple swamp shot a water thrush and a beautiful little jumping mouse. Dendroica aestiva left the swamps 4 or 5 days ago but I saw an in on a linden tree this morning (Aug.21). S. minimus also left about the same time that I secured a single Thrashs this morning in full fall plumage. These two species are the only ones that I am sure on grounds yet. Cortipes virus is abundant and they sing nearly as much now as in June. All the birds in fact sing more now than they did a month ago. That Orioles especially are quite noisy and the young males performably as well as the adult birds. Have seen no Hummers for a week past. Actinus Bestavin I hear our owl place nearly every morning. Have seen no Arctica Birds for a long time and I do not think there is a sail left in!