South Island giant moa (composite)

The Mesmerizing Moa
Moa belong to the same group of flightless birds as ostriches, emus, cassowaries, rheas, and kiwis and include the tallest-known bird: the 10-foot-tall (3 m) Dinornis robustus. Females could be more than twice the size of males. While many land birds lost the ability to fly as they evolved to a giant size, only moa lost their wings entirely.