black-chinned sparrow
... that the song of the black-chinned sparrow is said to resemble the sound of a dropped ping-pong ball?
... that the <a href="./Bird_vocalization" id="mwBFo" rel="mw:WikiLink" title="Bird vocalization">song</a> of the <b id="mwBFs"><a href="./Black-chinned_sparrow" id="mwBFw" rel="mw:WikiLink" title="Black-chinned sparrow">black-chinned sparrow</a></b> <i id="mwBF0">(pictured)</i> is said to resemble the sound of a dropped <a href="./Table_tennis" id="mwBF4" rel="mw:WikiLink" title="Table tennis">ping-pong</a> ball?