HUDSON'S BAY TITMOUSE. 545 



acute. Nostrils basal, roundish, concealed by the recumbent feathers. 

 The general form is slender. Feet proportionally large ; tarsus of mode- 

 rate length, anteriorly covered with a few long scuteUa, and sharp behind ; 

 hind toe very large and strong, the two lateral nearly equal, the outer 

 united at the base with the middle ; claws large, arched, much compressed, 

 very acute. 



Plumage blended, tufty. Wings of moderate length, the fourth quill 

 longest, fifth almost equal, third scarcely shorter than fourth, first very 

 short. Tail long, much rounded, of twelve rather narrow, rounded 

 feathers. 



BUI black. Iris very dark brown. Feet lead-colour. The general 

 tint of the upper parts is dull leaden, tinged with light brown, the head 

 umber brown ; primaries edged with pale greyish-blue. The throat and 

 fore neck are deep black, that colour being separated from the brown of 

 the head by a broad band of white running under the eye. The breast 

 and belly greyish-white, the sides light yellowish-brown. 



Length 5 inches, extent of wings 7; bill along the ridge |*^j, along 

 the edge /g ; tarsus /g, middle toe with the claw -^^^ hind toe the same. 



Adult Female, in summer. Plate CXCIV. Fig. 9.. 

 The female resembles the male, but the upper pai'ts are deeply tinged 

 with brown, and the head and throat are of a lighter tint. 



Young fully fledged. Plate CXCIV. Fig. 3. 



Bill greyish-blue. Upper parts of a dull greenish-grey. The throat 

 marked as in the adult, the under parts pale greyish tinged with brown. 



The plant represented in this plate is abundant in Labrador, New- 

 foundland, and our Northern States. It is a species of Primus, and at- 

 tains a height of eight or ten feet. 



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