Luft- oder Begattungslöcher in Birkenrinde.
<a href="//commons.wikimedia.org/w/index.php?title=User:Fdcgoeul&amp;action=edit&amp;redlink=1" class="new" title="User:Fdcgoeul (page does not exist)">Fdcgoeul</a>
10 September 2008 (upload date)
<span class="int-own-work" lang="en">Own work</span>