416 MOTACILLIDA. 
eye, and extending also over the ear-coverts, a distinct 
white line; the scapulars, back, and upper tail-coverts, 
greenish olive, tinged with yellow ; wing-coverts and quill- 
feathers, dark brown; the small and great coverts, and the 
tertials, edged with yellowish white; the two outer tail- 
feathers on each side, white, with a black border on the 
inner web of each, that of the second feather being broader 
than that of the first; the third feather black, with a 
narrow outer edge of white; the six central tail-feathers 
nearly uniform black ; the chin white, this colour extend- 
ing as far as the end of the ear-coverts in a line under- 
neath them; the throat, breast, and all the under surface 
of the body bright gamboge yellow ; legs, toes, and claws, 
black. 
The old male in the autumn loses the yellow tint on the 
back, the greener colour then prevailing, and the whole of 
the under surface of the body losing brilliancy fades to a 
primrose yellow. 
The length of the male is six inches and a half. From 
the carpal joint to the end of the wing three inches and 
one-eighth: the first, second, and third quill-feathers very 
nearly equal in length ; but the first is rather the longest. 
The whole length of an adult female is six inches and 
one-eighth. In the breeding-season the head, ear-coverts, 
and nape of the neck, are slate-grey ; over the eye and 
ear-coverts a white streak ; the back dull olive; the edges 
of the wing-coverts and tertials nearly white; the chin 
and throat white; all the rest of the under surface of the 
body pale king’s yellow. 
In autumn the grey head of the female is mixed with ~ 
greenish brown, the white streak over the eye and the ear- 
coverts remaining; the chin white; throat and breast 
buffy white ; belly, and under tail-coverts, primrose-yellow. 
