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 uuderparts ; 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. 





p2 



