of the District oj Montreal, 59 



irides orange yellow ; eggs 2 to 4 blue white, mottled with 

 brown. 



Dorsal aspect. Crown of the head, nape of the neck, cheeks 

 and auriculars black, with the white bases of the feathers ap- 

 pearing. A white stripe, with the shafts of the feathers black, 

 crosses over the eyes, from the base of the bill on each side, and 

 loses itself upon the neck ; back, wing coverts, interscapulary 

 regions as far as the rump blueish gray with black shafts ; pri- 

 maries and secondaries with their coverts brown, with lighter 

 edges ; rump white, with two perfect brown bars, and occasion- 

 ally an imperfect third : tail, two centre feathers blueish grey, 

 with 4 dark brown bars, and an imperfect fifth ; four next lighter 

 brown, with five distinct bars, imperfectly continued to the inner 

 vane of the last feather; primaries dark brown, mottled white 

 towards their insertion. 



Ventral aspect including the femorals and wing linings of short 

 wavy lines of greyish black on a white ground, with dark grey 

 shafts; tail dirty white with brown bars, indistinct on the two 

 outer feathers ; tail coverts white, a few of them mottled grey. 



Tarsi half feathered ; toes strong ; talons curved, long, grooved 

 inferiorly, the middle one with a salient inner edge ; upper man- 

 dible compressed, toothed ; lower one rounded near the apex ; 

 nostrils oval, clothed with stiff hairs presenting a stellated ap- 

 pearance a little over the commissure of the mouth. The upper 

 hairs meet over the nostrils, all closely appressed ; 4th primary 

 longest; 3rd about a line shorter; 2nd, 3 lines shorter than the 

 3rd ; 1st about half an inch longer than 6th, and shorter than 

 the 5th. Length 26 ^ inches; alar expanse 42 inches. The 

 female is met with about 5 inches longer than the male. Her 

 dorsal aspect is brown, slightly tipped with white, and a white 

 relieves the place of the mottled ventral aspect of the male with 

 occasional patches of brown of an oblong shape on the breast and 

 throat, and oval on the belly. In both male and female the tail 

 is much rounded, the outer feathers being 1 ^ inches shorter than 

 the centre ones. 



F.fuscus. Slate coloured hawk. 



F. Pennsylvanicus of Wilson ! Adult male. 



F. velox of Bonaparte ! Young female. 



Acdpiter fringilloides of Vigors ! 



Accipiter Pennsylvanicus of Swainson ! 



Buteo Pennsylvanicus. Wilson ! Bonap. ! Baird ! 



