J 42 FALCONIOE. 



irides bright yellow ; the head, the whole of the neck, back, 

 wing-coverts, secondaries and tertials, bluish-grey ; the 

 secondaries with three dark cross-bars, the last of which is 

 visible externally when the wing is closed ; the primaries 

 almost black; upper surface of the middle tail-feathers 

 bluish-grey; the lateral tail-feathers white, barred with 

 reddish-orange ; breast, belly and under tail-coverts, white 

 with various longitudinal streaks of reddish-orange ; under 

 wing-coverts barred with reddish-brown ; under surface of 

 tail-feathers dull white, barred with dusky grey; legs and 

 toes yellow ; the claws black. 



A young male, from which the figure was taken, killed 

 while undergoing his second moult, and in a state of gradual 

 change, has the top of the head and the feathers round the 

 cheeks a mixture of brown and rufous, ear-coverts grey; 

 occiput varied with white ; the nape, back, scapulars, tertials 

 and upper tail-coverts, lead-grey; upper surface of all the 

 tail-feathers, except the two in the middle, barred with two 

 shades of brown and rufous ; middle tail-feathers, with the 

 outer webs uniform pearl-grey ; the inner webs with five 

 dark brown bands on a greyish ground; primaries and 

 secondaries blackish-brown ; greater wing-coverts dark brown ; 

 lesser wing-coverts lighter brown varied with rufous, and 

 two or three grey feathers : chin and front of the neck, pearl- 

 grey ; breast, belly, thighs and under tail-coverts, white, 

 with a longitudinal rufous stripe on the middle of each 

 feather ; under surface of tail-feathers barred with greyish- 

 white and brown ; legs, toes and claws as in the adult. 



A young male in the plumage of the first year has the 

 head and neck ferruginous, each feather with a median 

 lanceolate patch of dark brown ; back and wings umber- 

 brown ; wing-coverts with broad ferruginous margins ; pri- 

 maries brownish-black ; secondaries and tertials tipped with 

 rufous : upper tail-coverts white, tipped with red ; upper 

 surface of the tail-feathers with five bands of dark brown, 

 and four bands of greyish-brown ; ear-coverts uniform umber- 

 brown ; chin, throat, breast, belly, thighs and under tail- 

 coverts, uniform reddish-brown ; under surface of wings the 



