My mother will celebrate her 100th birthday soon. While visiting her with my then teenage daughter a number of years ago. Mom, out of the clear blue offered up, "There once was a Rabbit, who developed the habit of twitching the end of its nose. One clever Bunny said, "isn't that funny, I'll practice it down in the dell. Sisters and Brothers and various others said, "if he can we're positive we can and did it remarkably well." Now all the world over, where Bunnies eat clover and wriggle and scratch with their toes. There isn't a Rabbit that hasn't the habit of twitching the end of its nose.
As my mother said she learned the poem at age 13 (1923) I was curious to find the author and this site has been most helpful. By the way, my daughter and I memorized the poem while washing our car that summer.