Steven David Miller / A male Australian King parrot (Alisterus scapularis) standing in a tree fern, Cania Gorge National Park, Queensland, Australia.

Steven David Miller / Australian king parrot (Alisterus scapularis), male eating berries of shrub. Lane Cove National Park, Sydney, New South Wales, Australia.

Jiri Lochman / Red winged parrot (Aprosmictus erythropterus), Purnululu National Park UNESCO Natural World Heritage Site, Western Australia, Australia.

Jiri Lochman / Red winged parrot (Aprosmictus erythropterus) consuming Wattle seeds, Purnululu National Park UNESCO Natural World Heritage Site, Western Australia, Australia.

Oriol Alamany / Australian King Parrot (Alisterus scapularis) male, Lamington National Park, Rainforests of Australia UNESCO World Heritage Site, Queensland, Australia

Oriol Alamany / Australian King Parrot (Alisterus scapularis) male, Lamington National Park, Rainforests of Australia UNESCO World Heritage Site, Queensland, Australia

Roger Powell / Regent parrot (Polytelis anthopeplus) feeding on border of flower bed in parkland, Cleland, South Australia

Juergen Freund / Australian king parrot (Alisterus scapularis) perched on branch, Atherton Tablelands, Queensland, Australia.

Bruce Thomson / Superb parrot (Polytelis swainsoni) male, perched in Eucalypt tree, Canberra, ACT, Australia.

Bruce Thomson / Superb parrot (Polytelis swainsoni) male, perched in Eucalypt tree stretching wings, Canberra, ACT, Australia.

Bruce Thomson / Australian king parrot (Alisterus scapularis) male, perched on branch in high altitude Eucalypt forest, Border Ranges, Queensland, Australia.

Bruce Thomson / Red-winged parrot (Aprosmictus erythropterus) perched on branch, Warwick, Queensland, Australia.