« <i>Periparus ater var. rufipectus</i> » = <i>Periparus ater rufipectus</i> (Subspecies of <a href="https://en.wikipedia.org/wiki/Coal_Tit" class="extiw" title="en:Coal Tit">Coal Tit</a>) - male
<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>
1889
<a rel="nofollow" class="external text" href="https://archive.org/stream/NauchnyerezulYt2IAka#page/n237/mode/2up">Nauchnye rezulʹtaty puteshestvyǐ N.M. Przhevalʹskago po t͡sentralʹnoǐ Azii, Tom II. Ptit͡sy, Obrabotal Ḟ.D. Pleske</a>