1880. Tophodytes cucullatus. Maine (Lake Umbagog). May 20. A pair on B Meadows. " 25. Set B-8. Some of the eggs incubated about threedays; the remainder fresh. Cavity in the top of a tall dead elm. The entrance, at a point where a limb had broken off, was not wider than a man's fist; the cavity, formed by decay, descended about three foot; the eggs were par- tially covered by the bird's down of which the nest was wholly composed. Their shells were so thick and hard that they were drilled only with great difficulty; yolk pale orange. We found this nest by seeing the female enter it. She came flying in from the lake and cir- cled about the tree several times, sailing with motion- less wings, then alighted on the edge of the hole and crawled in with some difficulty. No amount of pounding with an axe at the base of the tree sufficed to start her out, but when my guide began to climb it she at once emerged from the hole and disappeared. Later she returned and circled many times about the tree, but re- fused to enter the hole which we had chopped out. This nest was about thirty-five feet above the water; the stub, a very rotten one, stood with a few others in a cove on the lake shore near the Hayward farm. 7/8 (2534). June 11. A female with a brood of six young swimming in the grass near shore. As we approached, the mother flopped off heavily along the surface uttering her characteris- tic chink. The young, scattered in all directions, dived so adroitly that we could not catch any of them. They probably put up only the bill and that beneath some floating water plant, for each one that we pursued was soon lost sight of. " 24. Brood of seven young accompanied by the mother, near the mouth of Cambridge River. Six of the ducklings dove so adroitly that it was impossible to catch them, but the seventh had in some way broken one of its legs which had set in a stiff position impeding its movements so that it was easily secured. Sept. 3. Six in a close bunch hurling over the pond in the meadow from the direction of Cambridge River in the even- ing twilight. " 9. A flock in Leonard's Pond, and a single bird in the Androscoggin which dived exactly like a Grebe.