Member of the ratite pack?
I believe the answer is:
emu
(Other definitions for emu that I've seen before include "Australian running bird." , "Aussie runner" , "Physics unit" , "Flightless Aus. bird" , "Hull's character" .)
I believe the answer is:
emu
(Other definitions for emu that I've seen before include "Australian running bird." , "Aussie runner" , "Physics unit" , "Flightless Aus. bird" , "Hull's character" .)