Catatropis johnstoni
... that although the only known natural definitive host of the fluke Catatropis johnstoni is the marsh rice rat, its normal host may be a bird?
... that although the only known natural <a class="mw-redirect" href="./Definitive_host" id="mwEqw" rel="mw:WikiLink" title="Definitive host">definitive host</a> of the <a class="mw-redirect" href="./Trematode" id="mwEq0" rel="mw:WikiLink" title="Trematode">fluke</a> <i id="mwEq4"><b id="mwEq8"><a href="./Catatropis_johnstoni" id="mwErA" rel="mw:WikiLink" title="Catatropis johnstoni">Catatropis johnstoni</a></b></i> is the <a href="./Marsh_rice_rat" id="mwErE" rel="mw:WikiLink" title="Marsh rice rat">marsh rice rat</a>, its normal host may be a <a href="./Bird" id="mwErI" rel="mw:WikiLink" title="Bird">bird</a>?