Eurasian Crag-Martin <i><a href="//commons.wikimedia.org/wiki/Ptyonoprogne_rupestris" title="Ptyonoprogne rupestris">Ptyonoprogne rupestris</a></i>, Mont-Rebei, Lleida, Spain
lsala66
CC BY 2.0
<a rel="nofollow" class="external free" href="https://www.flickr.com/photos/lluissala/1833470620/">https://www.flickr.com/photos/lluissala/1833470620/</a>