Common Grasshopper Warbler
... that the Common Grasshopper Warbler is more often heard than seen?
... that the <b id="mwDHo"><a class="mw-redirect" href="./Common_Grasshopper_Warbler" id="mwDHs" rel="mw:WikiLink" title="Common Grasshopper Warbler">Common Grasshopper Warbler</a></b> <i id="mwDHw">(pictured)</i> is more often heard than seen?