of the District of Montreal, 185 



with olive yellow. Line from the nostrils to eye yellowish-white ; 

 line encircling the eye white ; interscapulary region, scapulars, 

 rump, tail and wing coverts olive yellow, brightest on the rump 

 and back : quill feathers and tail dusky, edged on the outer vanes 

 with yellow olive. 



Ventral aspect. Chin, throat, breast, flanks, and tail coverts 

 king's yellow, diluted with ash on flanks ; belly and vent white ; 

 upper femorals white, tinged with ash, brown or yellow. Very rare. 



Length about 4 J inches ; alar expanse, 7 inches. There is very 

 little difference between the male and female. The feathers on 

 the occiput in the specimen before me are destitute of the olive 

 yellow tint, and the line from the nostrils to the eye is white. 

 The yellow in the ventral aspect is equally as bright as in the 

 male. She has in contradistinction to the observation of Mr. Nut- 

 tall the bright chesnut crown, which is however scarcely so large 

 as in the female. A pair of these birds was shot by Sir W. Logan 

 in this vicinity, in the year 1841, from which this description is 

 taken. 



Sylvia Canadensis. Black- throated Blue. 

 Dendroica Canadensis. Baird ! 



v.s.M. Bill black ; legs and feet dusky ; irides dark ; eggs un- 

 known. 



Dorsal aspect. Head, interscapulary region, wing and tail 

 coverts slate blue ; quill feathers of wing and tail clove brown ; 

 all the primaries except the first, and the two outer tail feathers 

 with a white streak, which on the latter is situated on the inner 

 vanes ; outer edges of vanes of primaries and secondaries edged 

 with olive green ; of the tail with slate blue. 



Ventral aspect. Cheeks, throat, and flanks below the wings, 

 deep black ; breast, belly, inner wing, and tail coverts white. 



3rd primary longest; 2nd and 4th subequal; 1st shorter than 

 4th, but considerably longer than 5th. Length 4f inches ; alar 

 expanse 7 inches. A fine specimen, from which this description 

 is taken, was shot by Sir W. E. Logan in May, 1841. I have not 

 seen either the female or young. According to Nuttall, the black 

 of the female inclines to dusky ash or is wanting ? 



The foregoing fourteen species of this numerous genus, are the 

 only ones which it has fallen to my lot to observe in this neigh- 

 bourhood. I have no doubt, however, that the district of Mont- 

 real might also furnish us with the S. AuricoUis, Autumnalip^ 



