Sickle-billed Vangas
... that Sickle-billed Vangas have a polyandrous breeding system, with several males helping a single female raise a clutch of eggs?
... that <b id="mwAkY"><a class="mw-redirect" href="./Sickle-billed_Vanga" id="mwAkc" rel="mw:WikiLink" title="Sickle-billed Vanga">Sickle-billed Vangas</a></b> <i id="mwAkg">(pictured)</i> have a <a href="./Polyandry" id="mwAkk" rel="mw:WikiLink" title="Polyandry">polyandrous</a> breeding system, with several males helping a single female raise a clutch of eggs?