Chaetura pelagica. Maine (Lake Umbagog). 1873. Sept 8. Saw a single bird flying over Richardson Lake at sunset. Have seen none before for at least a week past. 1874. Aug. 8. Still here. “ 24. In the deserted barn at the Cross place I heard several Chimney Swifts twittering after dark on the evening of August 15. Inspecting the premises this morning I found one of their nests built in the end of the barn near the ridge poll. It was glued to the vertical face of the boards, and was precisely similar in every way to chimney nests. 1879. May 21. Late this afternoon saw Chimney Swifts collecting from all directions and swooping about the chimneys on a house on Bathol hill. The throng increased rapidly, until a large troop was circling about the house in a huge endless ring. As it grew darker their anxious manner and incessant twittering showed their impatience to get to bed, and they began to drop into one of the chimneys, a tall slender one of modern shape. At first, indeed for many minutes, the majority failed in this attempt. They would somehow miss the mouth of the chimney and scale off to speedily return and try it over again. As it grew darker they seemed to become more successful and at length nearly the whole troupe poured down into the chimney in a continuous stream that seemed as if it must fill the space within to overflowing. There were at least two hundred birds in all. June 15. Alva Coolidge tells me that in 1877, he took a set of eggs from a nest built in a tall dead stub near the Outlet. He discovered it by seeing the birds fly into the hole which was a natural one of rather large size, entering the side of the trunk. The nest was constructed in the usual manner and was glued to the inside of the cavity against the wood. A pair of these Swifts are at present building in a car enters shop near the mill, attaching their nest to the boards directly over the work bench..