white-headed robin-chat
... that the white-headed robin-chat is the only African robin with an entirely white head?
... that the <b id="mwCHg"><a href="./White-headed_robin-chat" id="mwCHk" rel="mw:WikiLink" title="White-headed robin-chat">white-headed robin-chat</a></b> is the only African robin with an entirely white head?