i 
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BLUE-HEADED WAGTAIL. 211 
The general colour of the rest of the upper parts is yellowish green, shading 
into greenish brown on the upper tail-coverts, as in the Yellow Wagtail ; 
but, unlike that bird, the forehead, crown, nape, ear-coverts, and lores are 
slate-grey, with a conspicuous white eye-stripe. There is no difference in 
the colour of the soft parts or of the underparts; but the brilliant yellow 
of the latter often shades into white on the chin and upper throat. The 
female has the head greenish brown, with a white eye-stripe; the yellow 
of the underparts is not so brilliant, and the breast is more or less mottled — 
with brown. The male of the year scarcely differs from the female; but 
in the adult male after the autumn moult the slate-grey of the head may 
be detected under the brownish green. 
