birdwing 
(also bird-winged butterfly)
noun
A very large boldly marked butterfly occurring in the tropical parts of Australasia.
- Genus Ornithoptera, family Papilionidae: several species, including Queen Alexandra’s birdwing (O. alexandrae), which is the world’s largest butterfly.
- A hundred and fifty years ago, Alfred Russel Wallace must have stood in similar awe when he first saw this spectacular birdwing butterfly in Sarawak, a few hundred miles down the coast from where we were hiking.