2S4 [July, 184 3 



abdomen. Sides of the body, forepart of the breast, and sides of the neck, 

 olive, lighter than the back, and inclining to yellowish on the throat. Pri- 

 maries and tail feathers dark brown, the former bordered with grayish, 

 and the latter with olive like the back. The lower row of lesser wing co- 

 verts and the secondary coverts darker, tipped with pale yellow, that co- 

 lour forming two bands across the wing. Secondaries darker than the 

 primaries, and edged with pale yellow. 



Length 5 inches 4 lines ; extent 8 inches 8 lines ; folded wing 2 inches 

 9 lines. 



The sexes are similar in colour, but the female is generally rather 

 smaller. 



Observations. This strongly marked species will at once be distinguished 

 from every other by the deep yellow of its under parts. It resembles 

 T. acadica of Gmelin (querula of Wilson) somewhat in form, but acadica 

 by comparison will be found to be a larger bird, lighter olive above, and 

 very pale yellow beneath. The tail of acadica is even or slightly rounded, 

 in this species emarginate. 



We have no specimen of T. pusilla, of Swainson, but upon comparison 

 with the description in Swainson and Richardson's Zoology of North 

 America, (so favourably known for accuracy,) it appears to differ in the 

 colour of the upper parts, pusilla being " intermediate between hair brown 

 and oil green ;" our species is of a decided olive green ; the front of pusilla 

 is "hoary;" in our species dark brownish olive; the bands on the wing- 

 grayish white; in our species pale yellow; "throat and breast" of T. pu- 

 silla " pale ash gray;" in this species the throat is yellow, and the breast 

 olive tinged with yellow. 



This species was first observed in the spring of 1840, near Carlisle, 

 Pennsylvania. During every succeeding spring since, it has been seen in 

 greater or less numbers, and several specimens procured each year. Its 

 habits are much like those of the other species of this genus; it frequents 

 low thickets near small streams, is seldom found in large woods like T. 

 acadica, or T. virens, and is a very unsuspicious bird, allowing persons 

 to approach within a short distance, [t probably goes further north than 

 Pennsylvania to breed, having never been observed after the latter part of 

 May or beginning of June. 



Tyrannula minima, (nob. ) 

 Specific characters. Above dark grayish olive, breast light ash gray, ab- 

 domen and lower tail coverts yellowish white. Tail emarginate. Second 

 and third primaries longest, first longer than sixth. Bill horn colour be- 

 neath. 



Description of a Male. 

 Form, &c. Body rather slender. Bill smaller than the other species of 

 the genus. Tarsus slightly longer than the middle toe. Second primary 



