146 



NORTHERN ZOOLOGY. 



is very slightly emarginate ; all the feathers being equal, except the central pair, which are 

 not above a line shorter. Hind claw shorter and less curved than in T. querula*, and but a 

 little larger than the middle one. 



Inches. 

 Length from the tip of the bill to the end of 

 the tail ...... 5 



„ of the tail .... 



,, of the longest quill feather 

 „ of the folded wing 

 „ of the bill, from the angle of the 

 mouth ...... 



Dimensions. 

 Lines. 





 

 



5* 



Length of the bill, measured on the ridge 

 „ of the tarsus .... 

 „ of the middle toe 

 ,, of its claw .... 

 „ of the hind toe . 

 „ of the hind claw 



Inches. 

 . 





 . 





 . 







Lines. 

 44 



7 



4 

 2 

 2 



21 



[35.] 3. Tyrannula Richardsonii. (Swainson.) 



The Short-legged Pewit. 



Genus. Tyrannula. Swainson. 



Ch. Sp. Tyrannula Richardsonii, olivaceo-brunnescenti subtus pallidior, crista densd incumbenti, rostro nigro, 



remige secunda. quintam aquanti, tertid et quartd quoque cequalibus et reliquas superantibus, caudd leviter 



forficatd, tarsis brevissimis. 

 Sp. Ch. The Short-legged Pewit, olive-brown above, pale beneath; head with a thick incumbent crest ; bill 



black ; the second and fifth quills equal, the third and fourth equal and longest ; tail slightly forked ; tarsi 



very short. — Sw. 



The possession of several specimens of the three small Tyrannula; described by 

 Wilson, viz. — rapax, querula, and nunciola, killed this spring in the vicinity of 

 Philadelphia, induces us to believe that this species, as well as the last, are new 

 additions to the American Fauna ; for such we must consider every bird whose 

 specific distinctions have not been pointed out. The present species appears, from 

 the skin, to be nearly of the same size as the nunciola of Wilson, which, in respect 

 to colour, it so closely resembles, that it may possibly on that account have been 



* The following are the dimensions of a specimen of the Muscicapa querula, Wils. (Tyrannula Acadica, Swains.) 

 killed this season in the neighbourhood of Philadelphia : — 



Inches. Lines. 



Total length 5 3 



Length of the tail ....... 2 .'5 



„ of the longest quill feather . . . . .2 10 



„ of the bill on its ridge ..... 5£ 



„ of the tarsus ....... 7i 



