No it ain't. kiwis have teensy wings with two(!) claws on each. They sleep
with their beaks tucked under the wings.
Whoa. Do these claws actually erupt through the skin as unguals like in
hoatzin chicks, or are they undeveloped? If it is the latter, maybe they
can erupt in atavistic individuals or through genetic manipulation
(theoretically).
Raymond Thaddeus C. Ancog
Mines and Geosciences Bureau
Philippines