50 



HISTORY OF 



the scapulars lighter ; forehead, pale ash ; chin and under parts, 

 dirty white ; tail, rounded, upper surface, black, underside ash 

 coloured ; the outer side of the tarsi, blueish, inner side and 

 webs, dirty yellow. The young have the plumage above of a 

 deeper tint. Length, seventeen inches ; length of tarsi, two 

 inches and two tenths. 



