Boreray
... that the Boreray is the most critically endangered breed of sheep in the United Kingdom, according to the Rare Breeds Survival Trust?
... that the <b id="mwDJo"><a class="mw-redirect" href="./Boreray_(sheep)" id="mwDJs" rel="mw:WikiLink" title="Boreray (sheep)">Boreray</a></b> is the most critically endangered breed of <a href="./Sheep" id="mwDJw" rel="mw:WikiLink" title="Sheep">sheep</a> in the <a href="./United_Kingdom" id="mwDJ0" rel="mw:WikiLink" title="United Kingdom">United Kingdom</a>, according to the <a href="./Rare_Breeds_Survival_Trust" id="mwDJ4" rel="mw:WikiLink" title="Rare Breeds Survival Trust">Rare Breeds Survival Trust</a>?