Madagascan hoopoe
... that the song of the Madagascan hoopoe differs markedly from that of the African hoopoe?
... that the <a href="./Bird_vocalization" id="mwCdY" rel="mw:WikiLink" title="Bird vocalization">song</a> of the <b id="mwCdc"><a class="mw-redirect" href="./Madagascan_hoopoe" id="mwCdg" rel="mw:WikiLink" title="Madagascan hoopoe">Madagascan hoopoe</a></b> differs markedly from that of the <a href="./African_hoopoe" id="mwCdk" rel="mw:WikiLink" title="African hoopoe">African hoopoe</a>?