Apteryx and Kiwi

Apteryx noun - Nocturnal flightless bird of New Zealand having a long neck and stout legs; only surviving representative of the order Apterygiformes.

Kiwi is a synonym for apteryx. In some cases you can use "Kiwi" instead a noun "Apteryx".

Kiwi noun - Nocturnal flightless bird of New Zealand having a long neck and stout legs; only surviving representative of the order Apterygiformes.

Apteryx is a synonym for kiwi. You can use "Apteryx" instead a noun "Kiwi".