Definition of Richmond birdwing in US English:

Richmond birdwing

noun

  • More fully "Richmond birdwing butterfly". A birdwing butterfly, Ornithoptera richmondia, the male of which has black and iridescent green wings, native to parts of eastern Australia.

Origin

1980s. From Richmond, the name of a river and mountain range in north-eastern New South Wales + birdwing, probably after the subspecific name in scientific Latin Papilio (Ornithoptera) richmondia.

Pronunciation

Richmond birdwing

/ˌrɪtʃm(ə)nd ˈbəːdwɪŋ/