The cartoon is unusual in that a different dog (instead of the Barnyard Dawg) is used as Foghorn's nemesis. The title is a pun on the phrase "whistle stop".
Plot
A shaggy dog (played by Lloyd Perryman[3]) is the guard at a farm's chicken coop when a lip-smacking weasel comes along, intending to gain access to the chickens. And, never one to side with a canine, Foghorn Leghorn opts to help the weasel by trying to violently remove the guard dog. The rooster and weasel try various methods of getting rid of the dog, but wind up losing all their feathers and fur in a hay baling machine. The cartoon ends with Foghorn saying "Fortunately, I always keep my feathers numbered for just such an emergency," a line used in several Warner Bros. Cartoons; after the iris out, the weasel reappears wearing its hay bale of fur and runs off in search of another meal.
^Beck, Jerry; Friedwald, Will (1989). Looney Tunes and Merrie Melodies: A Complete Illustrated Guide to the Warner Bros. Cartoons. Henry Holt and Co. p. 282. ISBN0-8050-0894-2.