Swallow-tailed Gull
... that the Swallow-tailed Gull of the Galápagos Islands is the only fully nocturnal gull?
... that the <b id="mwDT4"><a class="mw-redirect" href="./Swallow-tailed_Gull" id="mwDT8" rel="mw:WikiLink" title="Swallow-tailed Gull">Swallow-tailed Gull</a></b> <i id="mwDUA">(pictured)</i> of the <a href="./Galápagos_Islands" id="mwDUE" rel="mw:WikiLink" title="Galápagos Islands">Galápagos Islands</a> is the only fully <a class="mw-redirect" href="./Nocturnal" id="mwDUI" rel="mw:WikiLink" title="Nocturnal">nocturnal</a> <a href="./Gull" id="mwDUM" rel="mw:WikiLink" title="Gull">gull</a>?