distinguished by the name Platycercm pennantU, >■«,-. Nobbi, in honour of the Rev. G. H. Nobbs, the devoted 
Mend and guide nf the Norfolk Islanders. 
Habitats: Richmond and Clarence Hiver districts. New South AVales, Interior, Victoria, South 
Australia, Norfolk [eland. 
PLATYCERCUS A DELA I DENSIS. 
A /) /■! LAIDB /' I />' I! . / A I- /■ T. Genus : Platycercus. 
1TTE are Indebted to the painstaking care of Gould for the fact of this Parrot being established as a separate 
\\ species. Upon his first acquaintance with it, he was perplexed by its extreme similarity to the 
PennantU during many conditions of its growth from youth to maturity ; and it was only after he had killed 
members of tin- species in all stages of development, from nestling to adult, that he was enabled finally to decide 
upon its claim to a distinct class. He found that the adult, though it approximates so closely to the PennantU 
in its plumaage, is just a little less gorgeously crimson, a little less royally blue, while the dull yellow, so marked 
a distinction in the developiiiL; stages, remains slightly perceptible only in the flanks and at the back of the neck. 
The home //"/• excellence of this Ptatifcercits is South Australia, though its limits extend into other 
colonics ; and in the forties, during Gould's first visit there, it was so common in the streets of Adelaide itself 
that he decided do better name could be bestowed upon it than that of the young city. However, its great beauty 
and edibility Boon combined to drive it from this haunt hack among the hills. In the interior of South Australia 
adults are found to associate together in companies of from six to twenty, but nearer the coast, between Holdfast 
Bai and Porl Adelaide, the youm: ones assemble in (locks of hundreds, generally on the ground, busily employed 
picking up grass and seeds, and far too intent upon their occupation to betray much alarm at the approach of 
Btrangere. When disturbed they rise together and seek refuge in the nearest tree, uttering a shrill piping whistle 
as they rise. 
The Adelaide Parrakeet is smaller in all its dimensions than the PennantU. Its habitat extends through 
South Australia to Victoria and the Interior. 
The young bird for the first season is entirely green, which plumage is succeeded by pale orange-red on 
the head. rump, and upper surfaces, the scapularies and back feathers being margined with the same for a time, 
lmt thai disappears to uive place to dull yellow on the flanks and olive-yellow on the upper surfaces. In full 
maturity the scapularies and back Feathers are dyed with yellowish-buff and violet. The total length of the bird 
is thirteen inches and a-half. 
Head, back of neck, and breast, red ; cheeks and chin, pale bright blue; back, red, flecked with black ; 
slioulders, black, intermingled with yellowish-buff and violet ; primaries, secondaries, and tertiaries, pale blue, 
growing darker towards the tips ; tail, dark purple-blue on the upper side and pale blue beneath ; irides, black ; 
bill and feet, horn colour. 
Habitats : Interior, Victoria, and South Australia. 
