Screenshot of Adium (free software).
<p>Adium authors
<a href="//commons.wikimedia.org/wiki/User:Wolvenraider" title="User:Wolvenraider">Wolvenraider</a> (cow photo)
</p>
<a href="https://en.wikipedia.org/wiki/nl:User:.Koen" class="extiw" title="w:nl:User:.Koen">.Koen</a> at <a href="https://en.wikipedia.org/wiki/nl:" class="extiw" title="w:nl:">Dutch Wikipedia</a> (screenshot)
GPL
Screenshot. For the Cow in the background: This file was derived from: <a href="//commons.wikimedia.org/wiki/File:Cows.JPG" title="File:Cows.JPG">Cows.JPG</a><br>