Some nests are curious on account of shape. The birds often, it would seem, try their very best to see how oddly they can build their homes. The little Acadian Flycatcher, so common in Eastern Pennsylvania during the breeding-season, sometimes appears to be controlled by cranky ideas with regard to building. Dry blossoms of the hickory are the materials it ordinarily uses, and they can always be obtained whenever needed, but in a nest discovered by the writer in 1882, not a blossom was to be found, but in place of them there were long, stringy fibres of the inner bark of some species of herbaceous plant, which the birds had modelled into a compactly-built, shallow, saucer-like cavity, and from which they had caused to depend a gradually tapering train of the same for nearly nine inches. [Illustration: ACADIAN FLYCATCHERS. Nest Curious on Account of Its Train.] The King Bird, a distant relative of the Flycatcher, often displays as much eccentricity. Once upon a time a pair of King Birds took a fancy to an old apple-tree that stood within a few yards of my Germantown home. It was certainly not a place of quiet and retirement, for scores of noisy, dirty children daily resorted to its leafy shelter for coolness and pastime. But the birds were not the least disquieted. They had fixed their minds upon the spot, and build they did. The nest was posed between a forked branch, just out of the reach of the urchins. It was a crazy affair. Black, slender roots, wrinkled and knotted and tendrilled, made up the body of the fabric. As it was nearing completion, the opportune discovery of a bunch of carpet rags was hailed with delight. They were instantly appropriated, and promptly adjusted to the outside, but in such a manner that long ends, some fourteen inches in length, were made to project from the sides and bottom. Whether all this was for ornament or protection, or for both, I could not say, but I am inclined to think that safety was uppermost in the minds of the builders, for, looking from below at the nest it seemed but a mass of rags that had been thrown into a tree-crotch, which, the birds perceiving, and its close resemblance to an entangled bunch, had utilized. [Illustration: Copyright 1900 by A. R. DUGMORE. LONG BILLED MARSH WREN’S NEST.]