214 NORTH AMERICAN BIRDS. 



inches in diameter by two and one half in height, with cavities unusually 

 large and deep for the size of the nests. They were wrought almost entirely 

 of long strips of thin flexible bark, strongly and firmly interwoven. The 

 outer portions consisted of coarser and longer strips, the inner being much 

 finer and more delicate. With the outer portions were also interwoven bits 

 of mosses, lichens, and the outer bark of deciduous trees. The entire fabric 

 was a remarkable one. 



The eggs measure .70 by .55 of an inch, have a pinkish-white ground, 

 blotched with purple and brown of various shades and tints. They are dis- 

 posed chiefly about the larger end, usually in a ring. The eggs are oval in 

 shape and slightly pointed at one end. 



Perissoglossa carbonata, Baikd. 



CARBONATED WARBLEE. 



Sylvia carbonata, Aud. Orn. Biog. I, 1831, 308, pi. Ix (Kentucky). — Nutt. Helinaia 

 carbonata, Aud. Syn. — Ib. Birds Am. II, 1841, 95, pi. cix. Dcndroica carbonata, 

 Baird, Birds N. Am. 1858, 287 ; Rev. Am. Birds, 207. 



Sp. Char. Bill brownish-black above, light blue beneath. Iris hazel. Feet light flesh- 

 color. Upper part of the head black. Forepart of the back, lesser wing-coverts, and 

 sides dusky, spotted with black. Lower back dull yellowish-green, as is the tail, of 

 which the outer web of the outer feather is whitish. Tip of the second row of coverts 

 white, of the first row yellow ; quills dusky, their outer webs tinged with yellow. A line 

 from the lore over the eye ; sides of the neck and the throat bright yellow. A dusky line 

 behind the eye. The rest of the under parts dull yellow, excepting the sides. Length, 4.75 

 inches ; bill above, 4.42 ; tarsus, .75. (Audubon). 



Hab. Kentucky. 



This species continues to be known only by the description and figure of 

 Audubon. 



Judging from the description, this species is closely related to P. tigrina, 

 but seems to be distinct in the pure black of the top of the head, the absence 

 of orange-brown on the cheeks, the white of tlie wing being on the middle 

 coverts instead of the greater, and the tail-feathers being yellowish-green ; 

 the outer web of outer feather white, instead of a large spot on the inner 

 web, etc. The back appears more distinctly streaked. 



Habits. Two specimens of this Warbler, obtained near Henderson, Ky., 

 May, 1811, by Mr. Audubon, are all its claim to be recognized as a good 

 species. None have since been seen. These birds are described as having 

 been. busily engaged in collecting insects among the branches of a dogwood 

 tree. Their motions were like those of other Warblers. This is all we as 

 yet know as to the history of this species, and its claims to be regarded as 

 a good and distinct species are involved in doubt. 



