134 



Mr. P. R, Lowe on the 



the flanks they are replaced by prepennae, which are still 

 attaclied to the rapidly- growing contour-feathers. They 

 have already been described as conspicuous on the fore-neck 

 and breast. 



Text-figure 2. 



Wji;ii, 



Chionis alha. Nt'stlin^- half-fledged, from above. 



(c) Prepennie. — These are most conspicuous at the ends 

 of the wing-covertSj tail-feathers, over the thighs and legs 

 (femoral and crural tracts), and on the flanks. A few may 

 be seen over the fore-neck and breast. 



On the head (vertex) and back of the neck prepennal 



