<span style="white-space:nowrap"><i><a href="//commons.wikimedia.org/wiki/Phylloscopus_trochilus" title="Phylloscopus trochilus">Phylloscopus trochilus</a></i> <small><sup><i><a href="https://en.wikipedia.org/wiki/Phylloscopus_trochilus" class="extiw" title="en:Phylloscopus trochilus">en</a>   </i></sup></small></span>
<bdi><a href="https://en.wikipedia.org/wiki/en:John_Gerrard_Keulemans" class="extiw" title="w:en:John Gerrard Keulemans"><span title="Dutch bird artist (1842-1912)">John Gerrard Keulemans</span></a>
</bdi>
1897
NAUMANN, NATURGESCHICHTE DER VÖGEL MITTELEUROPAS: Band II, Tafel 6 - Gera, 1897 digitale Bearbeitung : Peter v. Sengbusch - b-online@botanik.uni-hamburg.de; <a rel="nofollow" class="external free" href="http://www.biologie.uni-hamburg.de/b-online/birds/2181_34.htm">http://www.biologie.uni-hamburg.de/b-online/birds/2181_34.htm</a>