146 GREY-HEADED YELLOW WAGTAIL. 



coverts bordered with olive green. Wings and tail as 

 in the Yellow Wagtail; beak, iris, and feet, brown. 



In the female the olive green of the upper parts has 

 a tinge of russet on the head and back. 



In the young the upper parts, according to Degland, 

 are ashy green, with the head olive-coloured, yellow 

 below, with the throat white, and a yellow superciliary 

 edge. 



It is figured by Bonaparte in "Fauna Italica," pi. 

 31, f. 2, and by Dubois, "Oiseaux de la Belgique," 

 part 77, pi. 93, male and female. 



