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. 
