Male-nape to back of neck and mantle and lesser wing coverts blue/purple; lower back washed with blue/purple; blue on edge of forewing; pale yellow margins to inner webs of secondary feathers. Centre tail feathers green, racquets and side tail feathers green tipped with blue/black. Bill dark grey with paler grey at base; eye dark brown. Female-no blue/purple on back of neck or mantle, blue/purple less evident on nape, lesser wing coverts and bend of wing.
As in adult but no blue/purple on upperparts, except a bit on nape in males; blue on bend of wing; no bare tail shafts.
Repetitive whistling and kwii kwii kwii notes; and lower pitched notes.
Content Sources:
BirdLife Internationalhttp://www.birdlife.org/datazone/species/index.html?action=SpcHTMDetails.asp&sid=1441&m=0
CITES http://www.cites.org/eng/resources/species.html
Internet Bird Collection http://ibc.lynxeds.com/
Parrots: A Guide to Parrots of the World, Juniper and Parr, 1998.
Parrots of the World, Forshaw, 2006.