No. 1. Foundation and superstructure are made chiefly of hollow weed-stems, some of which are a foot 

 long by one-eighth of an inch in thickness, and dried and skeletonized leaves of oak and beech. The rim 

 is well formed of weed-stems adroitly intertwined. The lining is scant, and consists of roller-grass, vine- 

 tendrils, and skeletonized and broken leaves. The external diameter is four and one-half inches ; external 

 depth, four inches; diameter of cavity, two and one-half inches; depth of cavity, two and one-fourth 

 inches. No. 2. Foundation and superstructure consist of weed-stems, strips of grape-vine bark, maple leaves, 

 leaf-stems, and rootlets ingeniously matted together into a rather firm structure. The lining is made of 

 roller-grass, rootlets, and skeletonized leaves. External diameter, six and one-half; external depth, four 

 inches. Diameter of cavity, two and five-eighths; depth of cavity, one and five-eighths inches. These 

 nests are very light for their size, weighing respectively one ounce and a quarter, and one ounce. 



EGGS: 



The number of eggs in a set varies from three ( to five— the usual complement is four. They are 

 rather long and pointed, and are uniform greenish-blue when fresh-— a shade between the Catbird's and 

 Wood Thrush's. The color fades some in time. In long diameter they measure .85 to .95; and in short 

 diameter from :58 to .68. A common size is about .62 x .90. A set of four eggs before me show the 

 following variations: .89 x .63, .90 x .62, .92 x .63, .92 x .62. 



DIFFERENTIAL POINTS: 



The nest and eggs together when still in position can not be mistaken, and even when collected and 

 separated it is still possible to identify each. The eggs have a tint peculiarly their own, and even when 

 this has faded by time to the tint of the Wood Thrush's eggs their size will still insure identification. 

 The eggs of the Wood Thrush average about .100 x .70; those of the Catbird, .95 x .69. The nest re- 

 sembles in construction that of the Catbird and Chewink, but its internal diameter is smaller. It also 

 resembles the nests of several Warblers, but the dimensions of its interior are larger. From the Wood 

 Thrush's nest it can at all times be distinguished by the absence of mud in its superstructure. 



REMARKS : 



The nest illustrated, Plate LVIII, was found in Franklin County, May 21st, 1884. It was in a damp, 

 shady ravine, about twenty inches from the ground, and contained four eggs. As the common position is 

 so similar to that of the Chewink's nest, it seemed best to figure a structure in a more unusual situa- 

 tion. The eo;o- s , selected from three sets, show the usual sizes and color. 



In a general way the habits of the Wilson's Thrush and the Wood Thrush are similar. Both birds 

 are fond of solitude and look somewhat alike, though the former is a little smaller and darker colored, 

 except its breast-spots, which are much fainter. The song of the Wilson's Thrush is inferior and less 

 frequently heard. From its habit of singing at night the bird has been called the "Nightingale." All 

 writers agree that this Thrush is a timid bird and so shy as to avoid more than a glance from its 

 biographer, and even while sitting the female shows little of that anxiety and fearlessness of danger which 

 the Robin exhibits when her home is being inspected. 



I have a nest and four eggs of the Wilson's Thrush which were taken from the leaf of a skunk- 

 cabbage plant situated at the edge of a swampy woods. The nest was placed at the base of the leaf about 

 eighteen inches 7rom the ground. In materials and workmanship it is in no way different from nests in 

 the usual positions. 



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