SYLVIAD/E. 



221 



of two or three of the outer tail feathers whitish near their ends. Under plumage sulphur- 

 yellow, changing to primrose on the abdomen, and pure gamboge-yellow on the under tail 

 coverts : inner wing coverts yellow. Bill and legs pale umber-brown. 



Form. — Bill perfectly awl-shaped, both mandibles tapering equally ; commissure very 

 slightly arched. Wings : the second, third, and fourth quill feathers scarcely differing in 

 length. Tail even. Length of the hind toe equal to that of the inner one ; its claw equal in 

 length, but stronger and more curved than that of the middle one. 





Inch. 



Lin. 



JJIMEN SIONS. 



Inch. 



Lin. 





Inch. 



Lin. 



Length total 



. 5 







Length of bill on its ridge 



4| 



Length of middle nail 



. 



2 



,, of tail 



2 



3 



„ of tarsus . . 



n 



„ of hind toe . 



. 



2£ 



„ of folded wing 



. 2 



5 



,, of middle toe . 



4f 



„ of nail . 



. 



2 



„ of bill from rictus 







5f 













[52.] 7. Sylvicola (Vermivora) peregrina. (Swainson.) Tennessee 



Worm-eater. 



Genus, Sylvicola. Sub-genus, Vermivora, Swainson. 



Tennessee Warbler {Sylvia peregrina). Wilson, iii., p. 83, pi. 25, f. 2. 



Sylvia peregrina. Bonap. Syn., p. 87, No. 140. 



Plate xlii. Under figure. 



One specimen only was procured at Cumberland House, on the banks of the 

 Saskatchewan, in the latter end of May. It was seen in a dense thicket of 

 small trees, flying- about among the lower branches ; and as it was pursued 

 some time without being- driven away from the place, it is probable that it had 

 a nest and mate in the neighbourhood. Nothing was ascertained respecting its 

 habits. — R. 



In some points of colour our specimen differs from that described by Wilson. 

 Both the series of wing coverts, and not the lesser only, are coloured like the 

 back. The lesser quills are also edged with rich yellow-olive ; but the greater 

 are bordered by a clear pearly-white, — not, as in Wilson's bird, " edged broadly 

 with yellow-olive." Not only the upper surface of the head, but that of the neck 

 also, is cinereous, without any mixture of olive. These differences, however, may 

 possibly originate in age. The Sylvia bicolor of Vieillot (pi. 90 bis) is a totally 

 distinct species from this, and is the only one of this group yet discovered in 

 Brazil. M. Vieillot, perhaps by mistake, says it inhabits North America : hide- 



