BY ROBERT HALL, C.M.Z.S. 37 



margins of the wing-quills and the tail are not so rufous as 

 in the adult. The contour feathers have the same loose 

 appearance as in the adult stage, the hooklets being reduc- 

 ed, and only in part junctioning. On the left side only 

 two rictal bristles are developed, the usual three being upon 

 the other. 



The cause of the distinctive markings of the under 

 surface in the adult D is due to the terminal portion of 

 each of the barbs of the feathers being deep brown, and the 

 subterminal portion white in crescentic and imbricate posi- 

 tion. 



The same locality feathers on C are uniform grey, with 

 the tips of each barb showing a dark hue, but not sufficient- 

 ly strong to get any other effect than grey upon the breast 

 and chest. 



