Monteiro's Storm-petrel
... that the unusual breeding season of the Monteiro's Storm-petrel was the first clue that led to the cryptic species' recent discovery by scientists?
... that the unusual breeding season of the <b id="mwAts"><a class="mw-redirect" href="./Monteiro's_Storm-petrel" id="mwAtw" rel="mw:WikiLink" title="Monteiro's Storm-petrel">Monteiro's Storm-petrel</a></b> was the first clue that led to the <a class="mw-redirect" href="./Cryptic_species" id="mwAt0" rel="mw:WikiLink" title="Cryptic species">cryptic species</a>' <a class="mw-redirect" href="./Bird_species_new_to_science_described_in_the_2000s" id="mwAt4" rel="mw:WikiLink" title="Bird species new to science described in the 2000s">recent discovery</a> by scientists?