Corp. Ysaillin, Nests of Yellowhumming Boc. erythrophthalma (White thro. Thryoides marchamius and W. Penki. Middlesex Co., Mass. 1875. May 31. The Pheilo likewise sat very close, but quietly stealing off the nest when I was within some feet of it but without making me of any interference to draw me away. When she thought I had discovered the nest she set up an angry che-wink & came quite near me again but upon my retiring her fears seemed to be allayed at once. I afterwards found a nest of Boc. erythroph. with two sitting upon one egg. Also found a wood thrush's nest with eggs. Both birds kept fluttering about me anxiously but with their habitual shyness, disappearing upon my slightest movement. The nest was about 7 feet up in a small elm not in a fork as usual but plastered against the side of the tree with an under support contributed by numerous clusters of small things which diverged from the main stem. Found also 4 nests of Bend. Penns. were ready for the eggs. Slight only a Garden Humming & (of the nest) of Herondo psorocorum & Bomada flycatchers were everywhere in abundance. I must have seen & heard 20, & I think the migration of that species & D. stricta is now at its height. Heard the pipe of Corp. Ysaillin in Mr. Spelman's garden this morning but could not get a right at the bird. Saw also a Lon. albies again to day. Had a fair shot at a 6' Marsh hawk but as it was within a mile of my nest I let him pass. The cherry apple & pear blossoms have all fallen.