Behold the duck. <br />It does not cluck. <br />A cluck it lacks. <br />It quacks. <br />It is specially fond <br />Of a puddle or pond. <br />When it dines or sups, <br />It bottoms ups.<br /><br />Ogden Nash<br /><br />http://www.poemhunter.com/poem/the-duck/