Vestigial wing of a little spotted kiwi (Apteryx owenii; kiwi pukupuku) held open by the fingers of a kiwi researcher at Zealandia EcoSanctuary, Wellington, New Zealand.
<a href="//commons.wikimedia.org/wiki/User:Psychokiwi" title="User:Psychokiwi">Judi Lapsley Miller</a>
CC BY 4.0
<span class="int-own-work" lang="en">Own work</span>