306 Mr. W. R. Ogilvie-Grant on Birds 



vinaceous finely freckled with grey, instead of uniform 

 pinkish- white. These sexual differences are apparent as 

 soon as the young bird assumes its first adult plumage, 

 as is clearly shown by young specimens in the British 

 Museum. 



In both sexes the young bird has the black margins of the 

 feathers on the back very much narrower than in the adult 

 or scarcely indicated, and some of the scapulars are bright 

 chestnut or black tipped with that colour ; the forehead, 

 cheeks, and throat are dull chestnut ; the breast-feathers are 

 widely tipped with much the same colour, and the belly and 

 under tail-coverts are mostly chestnut. In a young male the 

 breast-feathers are moulting in, nearly pure white ; while 

 in two females the breast-feathers are pinkish, densely and 

 finely freckled with grey. 



Mr. Walter Goodfeliow describes the flight of D'Albertis' 

 Pigeon as extremely rapid, and says that their aerial evo- 

 lutions reminded him of those of the common "Tumbler" 

 Pigeon. 



Mr. Claude Grant writes : — 



" This species was only seen when I was at my highest 

 camp on the peak above the Iwaka Hiver. There every 

 morning and evening two large flocks crossed, going 

 down to the low ground to feed and returning to roost 

 at night, when they flew straight up the wide river-valley 

 towards the great mountains beyond. On the two occasions 

 that specimens were secured the weather was very wfet and 

 misty, and the birds settled for a few moments in the stunted 

 trees on the peak, probably with the idea of getting their 

 bearings. They literally covered the trees, but unfortunately 

 only one was secured on each occasion. To fire a second 

 barrel was out of the question, as it was impossible to get on 

 to them quick enough and, if killed, a bird would have fallen 

 far below into the great valley and would almost certainly 

 have been lost." 



Mr. C. B. Kloss believes that this Pigeon is met with from 

 sea-level to the highest ground on Mount Carstensz, though 

 no specimens were procured in the latter locality. 



