ofthi District of Montreal, 55 



occiput, however, the ash blue ceases, and the whole remaining 

 dorsal region presents a uniform series of deep reddish brown, and 

 brownish black bars; on the tail these bars are 10 or 12 in num- 

 ber. The ventral aspect is white with longitudinal brown streaks. 

 i^. columharius. Pigeon hawk. 

 Falco (Hypotriorchis) columharius. Linn ! Baird ! 



v.s.p. Bill light blueish gray, tipped with black ; eyelids and 

 cere greenish yellow ; tarsi yellow ; eggs 2 to 4 mottled with red. 



Dorsal aspect. Feathers on the head and back of the neck, 

 black with brown edges ; a light brown streak from the cere pro- 

 ceeds backwards over the eyes, which are prominent, and is lost 

 on the neck. Krom this part downwards the colour is deep cho- 

 colate brown. The primaries and secondaries have this colour 

 relieved by whitish brown oval spots, tipped with the same. The 

 tail with 4 interrupted whitish brown bars, with a terminal one 

 of same colour. 



Ventral aspect. Chiu, 'throat, auriculars, breast, belly, and 

 vent, with the femorals, yellowish, streaked chocolate brown. Ou 

 the chin and throat these streaks are little more than confined to 

 the shafts of the feathers, but on the breast and belly they are 

 large, and of a lanceolate shape. The under tail coverts are 

 streaked like the femorals ; under surface of the tail chocolate 

 brown, barred with white ; the wing linings yellowish brown, 

 spotted with white, and the inner surface of the primaries banded 

 like the tail. 



The bill is compressed, hooked, deeply toothed, with a corres- 

 ponding groove in the lower mandible ; nostrils round ; 3rd primary 

 longest; 2nd about a line shorter, and 1st about a line shorter 

 than 4th; tail square, the feathers angled off at their tips; toes 

 with cushions at the joint ; middle toe longest, more than twice 

 the length of the hind toe. Length of a specimen in the author's 

 possession, 12j inches ; alar expanse 25 inches. 

 Siib. genus Aquila. 



Sub. gen. char. Bill strong, of considerable length, hooked 

 towards the apex and straight at the base ; eyes sunk ; nostrils 

 subcircular; cere hispid; 4th and 5th primaries longest: legs 

 strong, feathered to the toes ; toes strong; talons incurved, and 

 channelled inferiorly. 



F. chrysaetos. Golden eagle. 

 F. fulvus of Temminck 1 



