Cordelia J. Stanwood (1910c) speaks of a nest "built in a depression full of leaves, behind a flat rock. * * * The cavity was shaped on a slant, the upper wall forming a partial roof. * * * It looked not unlike a small-sized nest of an Oven-bird. On the inside, the length was 2-1/2 inches, width 1-1/2 inches, depth 2 inches. On the outside, length 3-1/2 inches, width 2-1/2 inches, depth 2-1/2 inches. Thickness of wall at the top of nest, 1 inch; at the bottom, 1/2 inch." Henry Mousley (1916) gives the average dimensions of three nests as "outside diameter 3-3/4, inside 1-3/4 inches; outside depth 2-1/4, inside 1-1/2 inches." F. A. E. Starr (MS.) writes to A. C. Bent from Toronto, Ontario, that all the nests he has found have been in broken-off stumps in low woods. "The cavity in the top of the stump," he says, "is filled with old leaves, and the nest proper is made chiefly of strips of bark with grass and fiber." Guy H. Briggs (1900) reports a nest "in a decayed hemlock stump, fifteen inches from the ground." In such cases, of course, while the nest is well above the ground level, it rests on a firm foundation. Audubon (1841) says: "In Louisiana, its nest is usually placed in some small hole in a tree," but he quotes a letter to him from Dr. T. M. Brewer on the subject, thus: "This bird, which you speak of as breeding in the hollows of trees, with us always builds its nest on the ground. I say always, because I never knew it to lay anywhere else. I have by me a nest brought to me by Mr. Appleton from Batternits, New York, which was found in the drain of the house in which he resided." Minot (1877) speaks of two nests found near Boston, Mass., well above the ground. He says: "The first was in a pine grove, in the cavity of a tree rent by lightning, and about five feet from the ground, and the other on the top of a low birch stump, which stood in a grove of white oaks." Gordon Boit Wellman (1905) states: "Toward the last of the incubation time one of the birds was constantly on the nest. I found the male sitting usually at about dusk, but I think the female sat on the eggs over night."