Flightless Birds Size Comparison Living Extinct
’s wren and Stephens Island
mesite
kiwi
spotted kiwi
cormorant
rail
neocaledoniae
defossor
auk
Island emu
rhea
island emu
penguin
moa (Megalapteryx didinus)
bush moa
moa and Broad billed moa (Euryapteryx curtus)
cassowary
rhea
rapidus
moa (Pachyornis australis)
cassowary
’s moa (Pachyornis geranoides)
moa (Emeus crassus)
nordenskjoeldi
moa (Pachyornis elephantopus)
walleri
emu
31. Emu
ostrich
brasiliensis
ostrich
ostrich
(Gastornis gigantea)
guillermoi
41.D