WARBLER. 213 



284.— AUTUMNAL WARBLER. 



Sylvia autumnalis, Autumnal Warbler, Am. Om. iii. pi. 23; f. 4. Shaw's Zool. x. p. 632. 



LENGTH four inches and three quarters ; breadth eight inches. 

 Bill dusky brown ; lower mandible, chin, and breast dull yellow ; 

 belly and vent white ; round the eye a pale yellow ring; plumage 

 above olive green, with dusky streaks on the back ; wings dusky, 

 edged with olive, and crossed with two white bars ; primaries, and 

 secondaries next the body, edged with white; tail black, edged with 

 dull white ; the three outer feathers marked with white near the tip ; 

 tail coverts ash, tipped with olive ; legs dusky brown. 



Inhabits Pennsylvania, generally seen in October, but rarely 

 after November, unless the weather is mild : the male has a few low 

 sweet notes. 



285.— BAY-BREASTED WARBLER. 



Sylvia castanea, Bay-breasted Warbler, Am. Om. ii. pi. 14. f. 4. Shaw's Zool. x. p. 714. 



LENGTH five inches ; breadth eleven. Bill black ; irides hazel; 

 crown of the head deep chestnut ; hindhead and back streaked with 

 black, on a greyish buff ground ; forehead, cheeks, a line over, and 

 a streak through the eye, and round it black ; behind the eye, on 

 each side of the neck, a broad, oblong spot of yellowish white; the 

 wings brownish black, edged with ash, crossed with two bars of 

 white ; tail forked, brownish black, the three outer feathers marked 

 with a white spot on the inner webs ; under parts of the body dull 

 yellowish white ; but the throat, breast, and sides under the wings, 

 are pale bay, or chestnut; legs dusky ash. The female is smaller, 

 and the colours less vivid, with much less of the bay on the breast. 



This inhabits Pennsylvania, but is a rare species ; has the habits 

 of a Titmouse; nest unknown. 



