504 APPENDIX. 



wings than querula, and there is a difference in the com- 

 parative length of their quill feathers. In the latter, 

 the first quill is equal to the fifth (or to the fourth, 

 according to Audubon), and the second and third are 

 longest; in pusilla the first is rather shorter than 

 the sixth, and the fourth is visibly longer than the 

 second, though the third, or longest, very little exceeds 

 either of them. The specimen brought home by Mr. 

 King differs from the one referred to above, solely in 

 being about a quarter of an inch longer from the point 

 of the bill to the end of the tail ; but the proportions of 

 the other parts are the same. 



The Arctic Blue-bird. [Sialia arctica.) F. B. A. 2. 



p. 209. t. 39. 



A single bird of this species was killed by Mr.Dease at 

 Great Bear Lake, on Sir John Franklin's second expe- 

 dition. Since then, the same gentleman has sent me 

 four specimens from New Caledonia, where it is pretty 

 common, and is known to the natives by the name of 

 " Thlee-ooday." Mr. King's specimen proves that it 

 goes as far east, on the shores of Great Slave Lake, 

 as the 105th meridian. All the individuals that I have 

 seen agree exactly in the colours of their plumage, as 

 well as in other respects, with the one figured in the 

 Fauna Boreali- Americana. In one specimen only, the 

 first quill feather almost equals the second, but in none 

 does it exceed it, as is the case with Sialia Wilsonii. 



Tenessee Worm-eater. (Vermivora peregrina.) 

 F. B. A. 2. p. 221. t. 42. f. 2. 



Mr. Audubon says that this species is very rare in the 



