178 CHESTNUT-SIDED WARBLER. 



the bay color on the breast; the black on the forehead is also less 

 and of a brownish tint. The legs and feet, in both, are dark ash, the 

 claws extremely sharp for climbing and hanging ; the bill is black ; 

 irides hazel. 



The ornithologists of Europe take no notice of this species, and have 

 probably never met with it. Indeed it is so seldom seen in this part of 

 Pennsylvania that few even of our own writers have mentioned it. 



I lately received a very neat drawing of this bird, done by a young 

 lady in Middleton, Connecticut, where it seems also to be a rare species. 



Species IX. SYLVIA PENNSYLVANICA. 



CHESTNUT-SIDED WARBLER. 



[Plate XIV. Fig. S.] 



Linn. Syst. 333. — Red-throated Flycatcher, Edw 301. — Bloody-side Warbler, TuR- 

 TON, Syst. I., p. 596. — La figuier d, poitrine rouge, Burr, v., 308. — Briss. App. 

 105.— Lath, ii., ^W.—Arct. Zool. p. 405, No. 298.* 



Of this bird I can give but little account. It is one of those tran- 

 sient visitors that pass through Pennsylvania in April and May, on 

 their way farther north to breed. During its stay here, which seldom 

 exceeds a week or ten days, it appears actively engaged among the 

 opening buds and young leaves, in search of insects ; has no song but a 

 feeble chirp or twitter ; and is not numerous. As it leaves us early in 

 May, it probably breeds in Canada, or perhaps some parts of New Eng- 

 land ; though I have no certain knowledge of the fact. In a whole 

 day's excursion it is rare to meet with more than one or two of these 

 birds ; though a thousand individuals of some species may be seen in 

 the same time. Perhaps they may be more numerous on some other 

 part of the continent. 



The length of this species is five inches, the extent seven and three 

 quarters. The front, line over the eye, and ear feathers are pure white, 

 upper part of the head brilliant yellow ; the lores, and space immedi- 

 ately below, are marked with a triangular patch of black ; the back and 

 hind head is streaked with gray, dusky, black and dull yellow ; wings 



* Additional synonymea: — Motacilla icterocephala, Linn. Syst. i., p. 325. — Gmbl. 

 Syst. J., p. 9B0.— Sylvia icterocephala, Lath. Ind. Orn. n., p. 538.— Vieil. Ois. de 

 I'Am. Sept. Tpl. 90. — Sylvia Pennsylvanica, Gmel. Syst. i., p. 971. — Lath. Ind. Orn. 

 II., p. 540. — Ficedula Canadensis icterocephalas, Briss. hi., p. 517, 64, t. 27, f. 2. — 

 Id. 8vo., I., p. 451. — Ficedula Pennsylvanica icterocephalas, Briss. App. p. 105. — 

 Id. 8vo., I., p. 458, 78. 



