258 
Length, to end of tail, 86 inches; extent of wings, 72; bill, 
along the ridge, 3°41 inches, along the edge of lower mandible, 
8, its height, 1-41; wing from flexure, 24; tail, 11°5; tarsus, 4; 
first toe, 1°33, its claw, 2°16; second toe, 1°58, its claw, 2°16 ; third 
toe, 3, its claw, 1:41; fourth toe, 2°08, its claw, 1°58. 
Frematr. The female does not differ from the male in color, 
and her superiority in size is often not very remarkable. 
Length to end of tail, 40 inches; extent of wings, 80; bill 
along the ridge, 3°91, along the edge of lower mandible, 3°33, 
its height, 1°66; wing from flexure, 27°5; tail, 12; tarsus, 4°50 ; 
first toe, 1-5, its claw, 2°25; second toe, 1°16, its claw, 2°33 ; third 
toe, 3°08, its claw, 1:64; fourth toe, 1°66, its claw, 1°41. 
Youna. The bill is brownish black, the base of the lower 
mandible yellow, the cere greenish yellow ; the feet yellow, the 
claws black. The bases of all the feathers are brownish white, 
their middle parts light reddish brown, their tips only blackish 
brown. The head and nape are dark brown, each feather with 
a minute, brownish white spot on the tip. On the middle of 
the back, and on the wings, light reddish brown is the prevalent 
color, the black tips of comparatively small extent; on the third 
part of the back, there is much white, that color extending 
farther from the base. The quills and larger wing coverts, are 
blackish brown, with a tinge of grey ; the tail feathers brownish 
white in the centre, black towards the margins, with irregular 
white dots, the lower parts are of the same colors as the back, 
or are pale reddish brown, marked with longitudinal streaks 
and spots of dark brown; the lower wing coverts brown, the 
tail coverts white, with light brown tips. 
Procress TowARD Marurity. In the second year, the 
young exhibit little difference, being, however, of a darker tint 
on the back and wings. An individual at this age, has the bill 
brownish black, tinged with blue, its base and the cere greenish 
yellow; the iris hazel brown; the feet gamboge, the claws 
brownish black. The head and nape are dark brown, the base 
of all the feathers, on the upper parts, is white: on the hind 
neck and fore-parts of the back that colour, tinged with yellow- 
ish brown, prevails, a lanceolate or obovate deep brown spot, 
being on each feather towards the end; on the middle of the 
back, the brown prevails, on the hind part white, and the rump 
and upper tail coverts are light brown, tipped with darker. 
The scapulars are dark brown, with a purplish tinge, the wing 
coverts dark brown at the end, but most of the larger pale 
brown in the greater part of their extent ; the quills black, with 
a purplish grey tinge, the secondaries gradually becoming more 
brown, and all faintly variegated with light grey and brown on 
the inner webs. ‘T'he tail is brownish black, with a tinge of 
+ < ewe 
