hen fleas
... that more than 5,000 hen fleas were recorded from the nest of a coal tit?
... that more than 5,000 <b id="mwBb4"><a href="./Ceratophyllus_gallinae" id="mwBb8" rel="mw:WikiLink" title="Ceratophyllus gallinae">hen fleas</a></b> <i id="mwBcA">(specimen pictured)</i> were recorded from the nest of a <a href="./Coal_tit" id="mwBcE" rel="mw:WikiLink" title="Coal tit">coal tit</a>?