We visited Coffs Harbour Butterfly House yesterday. There were lots of wonderful Cairns Birdwing Butterflies – Ornithoptera priamus – fluttering by… they are such beautiful large butterflies. They are closely related to the Richmond Birdwing Butterfly.
Wildflowerings - Art Studio Diary 
When I lived in N Queensland, Cairns birdwings used to fly into the garden. I didn’t have the correct Aristolochia planted so they didn’t stay. It was a joy to see them, though.
I have 2 fencelines of aristolochia praevenosa which is the food for the Richmond Birdwing butterfly. We get the occasional birdwing – it is endangered and there was a push to plant more vines a few years back around the northern rivers of NSW.