Psittacula derbyana

Psittacula
derbyana

[Fraser 1852]

Derbyan
Parakeet

1.
Psittacula derbyana derbyana

(Fraser 1852)

Tibetian
Derbyan Parakeet

Description:
General plumage green; lores and lower cheek area black; head violet-blue; breast,
abdomen, under wing-coverts and parts of thighs greyish deep-blue; middle tail-feathers
blue with green base; outer tail-feathers green with blue edging; upper mandible
red with yellowish tips, lower mandible black; iris pale yellow; feet grey.

Hen with brownish band
behind ear-coverts, slightly paler abdomen plumage and black upper mandible.

Immatures with green crown
and nape; upper and lower mandible in both cock and hen pink changes to black;
iris dark; young cocks with slightly paler Sabdomen plumage; adult plumage attained
by two years.

Length:
50 cm, wing length 208 – 228 mm, tail length 207 – 266 mm.


Distribution:
Northeast Assam, Southeast Tibet and Southwest China in provinces of Swechwan
and Yunnan.

2.
Psittacula derbyana chinensis

(Rana 2001)

Chinese
Derbyan Parakeet

Note:
Psittacula derbyana chinensis is officially unkown as a subspecie of the
Derbyan parakeet.

Description:
As derbyana,
but slightly smaller;

head duller violet-blue, more greyisch; breast, abdomen, under wing-coverts and
parts of thighs
greyisch-brown;
upper mandible slightly duller red with yellowish tips, lower mandible black;
iris pale yellow; feet light grey
.


Hen with brownish band behind
ear-coverts, slightly paler abdomen plumage and black upper mandible.

Length:
50 cm, wing length 208 – 228 mm, tail length 207 – 266 mm.

Distribution:
Unknown.
Probably
Southwest China in provinces of Swechwan and Yunnan and Northern Burma expected.

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