SYLVIAD^E. 



227 



glossed with yellowish-grey ; quill and tail feathers blackish-grey, edged with greyish-white. 

 Under plumage brownish-white, deepening in some specimens to yellowish-grey. Bill pitch- 

 black. Legs bluish. 



Form. — Bill, nostrils, &c, typical. Fifth quill feather longest, but scarcely exceeding 

 the fourth and sixth, and only two lines longer than the third and seventh ; eighth two lines 

 shorter than the seventh ; ninth about as much shorter than the eighth, and equal to or a 

 little exceeding the second; first less than half the length of the second. Tail long, rounded. 

 Tarsi considerably longer than the middle toe. Two lateral toes adherent to the middle one 

 by their first phalanges ; third one most robust and furnished with the longest claw. 



Length total 

 „ of tail 

 „ of folded wing 



Dimensions. 



Inch. Lin. Inch. Lin. Inch. Lin. 



. 5 C Length of bill on its ridge . 5 Length of middle claw . 1^ 



2 10 „ of tarsus • . J| „ of hind toe . ." 3 



.2 8 ., of middle toe . .0 # ,, of hind claw . 2 



[56.] 1. Seiurus aurocapillus. (Swainson.) Golden-crowned Accentor. 



Genus. Seiurus. Swainson. 



The Golden-crowned Thrush. Edwards, pi. 252. Penn. Arct. Zool, ii., p. 339. 



Golden-crowned Thrush (Turdus aurocapilla). Wilson, ii., p. 88, pi. 14, f. 2. 



Turdus coronatus. Vieil., Ois. de I' Am., ii., pi. 04, p. 8. 



Sylvia aurocapilla. Bonap. Syn., p. 11, No. 102. 



This very pretty bird breeds on the banks of the Saskatchewan, and per- 

 haps in still higher latitudes, and also as far south as Pennsylvania. It 

 reaches the latter State in April, and departs late in September, after having 

 reared two broods. Mr. Say mentions that it arrives on the upper branches of the 

 Missouri on the 26th of April, and it makes its appearance in the fur-countries 

 ten or twelve days afterwards. It winters within the tropics, the specimen from 

 which Edwards's figure was dravn having been taken off St. Domingo on the 

 1st of November, 1751. Bartram and Wilson inform us that it builds its nest 

 in the woods among the fallen leaves, choosing a declivity with a southern aspect. 

 The nest is sunk below the surface, built of grass, arched over and lined with 

 hair, a small hole only being left for an entrance. The eggs are four or five, 

 of a white colour, sprinkled all over, but chiefly towards the large end, with spots 

 of yellowish-brown, intermixed with a few larger ones of subdued purplish-grey. 



2 G 2 



