COMMON THICK-KNEE. 
313 
that part ; the greater wing-coverts are cream-yel- 
low, edged with purplish-black, the quills and secon- 
daries are also purplish black, the two first quills 
with a large diagonal yellowish-white patch, about 
an inch and a half from the tip, and which, on the 
first quill, crosses both the webs, on the second the 
inner only ; the lower parts white, or yellowish- 
white : the chin and fore part of the neck unshaded ; 
the neck, breast, belly, and flanks, narrowly dashed 
along the shaft of each feather with umber-brown ; 
the feathers of the under tail-coverts ochreous, the 
shafts dark ; in the tail, the centre feathers are pale 
yellowish-brown, the others brownish-black at the 
tips for a considerable space, succeeded by a broad 
yellowish-white bar running diagonally, afterwards, 
alternately bordered with the brown and yellowish- 
white to the base, — upon the under surface these bars 
appear Very clear and decided ; the bill is black at 
the tip ; the base, and on the edges of the rictus, 
primrose-yellow; behind the eyes there is also a 
bare space nearly of the same colour ; legs and feet 
greenish-yellow. 
The female does not vary materially, and no 
seasonal change has been pointed out by ornitholo- 
gists. 
