414 MASS. (Middlesex Co.) 1877. Aug 26 East Dæstia Concord Mass. "His horreum" "Progn purpura Yales Columbianus" " Cloudy and foggy morning: trees dripping after yesterday's heavy rain, At least one hundred Chaetura pelagica Circling rapidly about the tops of the elm tree in front of the Buttricks', picking off some insect from the topmost leaves. Saw the last Dendroeca æstiva; -- most of them left about a week since! Saw also the last Progne purpura, a few swallows of the other species still with us. The Martins congregated in a vast body several days since lighting all over Mr. Hayes' farm and after spending nearly the whole day in pelting their ranks, they disappeared. Sept 13 Shot a female Pyrausa subra in the apple tree behind the Buttrick's house. I was in company with a lot of yellow and dark Sarporhis fuscus. Saw several Contopus viridis yesterday and shot two. This afternoon a vast body of Chimney Swifts appeared over the drive and dozens flapping down swiftly skimmed over the water, occasionally dipping to the surface within to seize an insect or to drink I could not decide which. While watching this I noticed a great commotion in their midst and a tiny little Yales Columbarius appeared with one of the Swifts dangling from his claws its long wing hanging conspicuously