Parrots. 
159 
coloured plate of the two of these Parrakeets appeared in B.N.. 
Vol. v., new series. 
Another lars^e Parrot not infrequently kept by our mem- 
hers in the Australian Rose-brkas i ku Cockatoo (Cacatita rosci- 
capUla). They are very handsome birds in an aviary, but are 
persistent screamers, and I found mine very destructive to 
woodwork. Mine did not nest, but I don't think that I kept 
them loni;- enou!.;h. 1 found them absolutely indifferent to cold, 
and have many times seen their backs covered with snow, when 
they have gone to roost outside. The sexes can be distingu)shed 
by the difference in the colour of their eyes. 
Another interesting group is that of the genus brotu- 
gcrxs. These all make charming aviary pets. Here again the 
sexing question is a most difiicult one, as there is no visible dif- 
ference in the plumage of the sexes. 
The All-Greex Parrakeet ( Brotogcrys tirica) is about the 
commonest, and has been bred in captivity. My hen did not live 
very long, and 1 cannot now remember whether it differed in 
any way from its mate. I was not particularly interested in the 
species and did not trouble to replace it. 
The Canarv-wixg Parrakeet (B. chiriri) is a most 
charming" little bird, its bright yellow-wing coverts contrasting 
prettily with the rich green of the rest of its plumage. I kept a 
pair of these birds for a considerable time, but although they 
were on very good terms with each other, they made no attempt 
to nest. Dr. Butler tells us that the female has a narrower beak 
than the male, and without the laternal angle at the end of the 
cutting edge of upper mandible, when viewed from above. I 
could see no difference in mine, atlhough I wasted a good deal 
of time in examining them. One that died proved to be a male. 
The White-wixg Parrakeet (B. vircsccus) is a much 
commoner bird, and is frequently sold as the Canary-wing, li 
differs in being of a more olive green body colour, and in having 
the bastard wing, and some of the flights white, the greater 
coverts only being yellow. I have had several pairs of these 
little parrots, but failed to get any of them to nest. I found this 
species delicate, as I lost several from pneumonia through tuiT. 
