Steven David Miller / Cairns birdwing butterfly (Ornithoptera euphorion), male wing, close up. Kuranda Butterfly Sanctuary, North Queensland, Australia. Captive

Steven David Miller / A female Cairns birdwing butterfly (Ornithoptera euphorion), Kuranda Butterfly Sanctuary, Queensland, Australia. Captive.

Paul Williams / Raja Brookes Birdwing Butterflies (Trogonoptera brookiana) puddling, Borneo.

Paul Williams / Raja Brookes Birdwing Butterflies (Trogonoptera brookiana) puddling, Borneo

Paul Williams / Raja Brookes Birdwing butterfly (Trogonoptera brookiana), Borneo. Small repro only

Paul Williams / Filming a Raja Brookes Birdwing butterfly (Trogonoptera brookiana), Borneo

Paul Williams / Raja Brookes Birdwing Butterfly (Trogonoptera brookiana), Borneo

Ingo Arndt / Helena Birdwing Butterfly (Troides helena) Malaysia.

Juergen Freund / Cairns birdwing butterfly (Ornithoptera euphorion) female on tropical flowers, Queensland, Australia.

Juergen Freund / Cairns birdwing butterfly (Ornithoptera euphorion) on red tropical flowers, Queensland, Australia.

Juergen Freund / Cairns birdwing butterfly (Ornithoptera euphorion) chrysalis, Queensland, Australia.

Lynn M Stone / Cairn's birdwing butterfly (Ornithoptera priamus) male, captive, endemic to northern Australia.