Petrochelidion hemifrons. 1896 Lake Umbagog. August 9 400 10 500 11 400 12 20 13 20 14 50 15 100 16 50 17 50 18 50 19 30 20 2 21 100 four 22 100 23 50 24 15 27 10 31 15 Others months 11th G. Journal of this date for account of the flocking of these & other swallows preparatory to migration; also Journal Aug. 17-23. 17th On visiting the Soke Home this noon I found several young birds still in the nests their parents bringing food to them. More than half of the nests had failed during my last visit (from 12th) although they are supported by a broad chest. 22nd Young birds copulating and gathering bills full of mud in the wood. One young & copulated with a young White Bellied Swallow (G Journal for full account of this) During this month I frequently saw Barn Swallows alight in company with the other species in the tops of both living and dead trees. I do not think that they are so prone to this as the other Swallows, however, nor do I think that the young do it much if at all when they first leave the nest. September 1 20 3 5 (June) 4 5 2 1897. September O. C with 15 Barn Swallows 1898 August 22 100 26 26 42 27 5 28 12 29 30 20 Surnac for September O. U. (with 3) 8 12 13 32 Barn Swallows/