this thing
... that nesting is not used by breeding Mute Swans but they do use this thing?
... that <a href="./Nesting,_Shetland" id="mwFeo" rel="mw:WikiLink" title="Nesting, Shetland">nesting</a> is not used by breeding <a class="mw-redirect" href="./Mute_Swan" id="mwFes" rel="mw:WikiLink" title="Mute Swan">Mute Swans</a> but they do use <b id="mwFew"><a href="./Law_Ting_Holm" id="mwFe0" rel="mw:WikiLink" title="Law Ting Holm">this thing</a></b>?