AVES FALCONID/E. 



607 



Back : Dull, ashy slate, darker than the neck and lighter than the crown, 

 shaded with brownish ; rump and upper tail-coverts like the upper back, 

 but somewhat lighter in tone. 



Fig. 301. 



Accipiter chilensis. Detail of foot. Natural size. 



Tail : Brownish ash, each rectrix crossed with six almost black bars 

 and with narrow whitish tips ; the tail from below presents a silvery-white 

 surface, somewhat shaded with ashy, and with the black bars very distinct 

 and contrasted on the ground color. 



Wings : The upper wing-coverts, including the primary series, concolor 

 with the back; all the quills brownish, with but slight ashy shading, and 

 barred definitely with much darker brown ; seen from beneath, the wings 



