The park earned itself the Gibbs Wildlife Conservancy Excellence Award, which is given to the most innovative wildlife display.
The park's wildlife manager, Nicole Kunzmann, said the red-crowned kakariki were ''holding on in small pockets on the mainland''.
Because of potential disease risks to the wild population from the captivity-bred birds, ''at the moment they are advocacy only, so they are telling the story and hopefully one day we will be breeding for release.''
Before the upgrade to the red-crowned kakariki enclosure, the birds and visitors were separated by netting. Now visitors can walk into the much larger enclosure.
''The whole reason behind that is ... if you go walking up Glenorchy way you can see all the yellow-crowned kakariki and we wanted our visitors to have that.''
Red-crowned kakariki were a lot noisier, she said, and the park also had yellow-crowned kakariki in a different enclosure.
In 2011, the park won the same award for its Campbell Island teal enclosure.
