HUDSON'S BAY TITMOUSE. 157 



Adult Male, in summer. 



Bill short, straight, of moderate strength, somewhat conical, compressed 

 towards the end; both mandibles with the dorsal outline a little convex, the 

 sides sloping and slightly convex, the edges sharp, the tip acute. Nostrils 

 basal, roundish, concealed by the recumbent feathers. The general form is 

 slender. Feet proportionally large; tarsus of moderate length, anteriorly 

 covered with a few long scutella, 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. 



Bill 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 f|, along the edge 

 ■/aj tarsus T 7 2, middle toe with the claw —, hind toe the same. 



Adult Female, in summer. 



The female resembles the male, but the upper parts are deeply tinged with 

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



Young fully fledged. 



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, Newfound- 

 land, and our Northern States. It is a species of Primus, and attains a 

 height of eight or ten feet. 



Vol. II. 27 



