Possibly South American Amazona parrots, Nick, photographed in an aviary somewhere.
As a widely travelling Canberran you will be familiar with the attached scene. Since airing it at a talk the other night, I came across the below para in the speech by the swan-loving RGM in 'opening' the lake on 17 October 1964 -

-----Original Message-----
From: Canberrabirds <> On Behalf Of Nick Payne via Canberrabirds
Sent: Wednesday, 19 March 2025 6:31 AM
To: Canberra Birds <>
Subject: What parrots are these?
I went yesterday to the National Library and had a look at the exhibition of old Fairfax news photos. This photo was there, captioned "Perching parrots, NSW", but I don't recognise them as a species of Australian parrots. Any ideas?
Nick Payne