With mold-covered feces of a goose (<i>Anser anser forma domesticus</i>)
Domesticated Greylag Geese. Location, Natuurterrein <a href="https://nl.wikipedia.org/wiki/De_Famberhorst" class="extiw" title="nl:De Famberhorst">De Famberhorst</a>.
<a href="//commons.wikimedia.org/wiki/User:Famberhorst" title="User:Famberhorst">Dominicus Johannes Bergsma</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>