This fox appears in the famous story that we all know where chick that believes the sky is falling when an acorn falls on its head. The chick decides to tell the King and on its journey meets other animals (mostly other fowl) which join it in the quest.
After this point, there are many endings. In the most familiar, a fox invites them to its lair and there eats them all. Alternatively, the last one, usually Cocky Lockey, survives long enough to warn the chick, who escapes. In others all are rescued and finally speak to the King.
In most retellings, the animals have rhyming names, commonly Chicken Licken or Chicken Little, Henny Penny or Hen-Len, Cocky Locky, Ducky Lucky or Ducky Daddles, Drakey Lakey, Goosey Loosey or Goosey Poosey, Gander Lander, Turkey Lurkey and Foxy Loxy or Foxy Woxy. The moral to be drawn changes, depending on the version. Where there is a 'happy ending', the moral is not to be a 'Chicken' but to have courage.
In other versions where the birds are eaten by the fox, the fable is interpreted as a warning not to believe everything you are told.