Mother Was a Rooster is a 1962 Warner Bros. Merrie Melodies animated short directed by Robert McKimson.
When the egg doesn't immediately hatch, Barnyard Dawg decides to speed up the process by bonking Foghorn on the head with a mallet.
After an attempt to get back at Barnyard Dawg fails, which involves an anvil hanging from a tree while tied to a rope, the plot shifts to Foghorn's attempts to bond with his son, showing him how to play various sporting activities such as baseball and football.
Despite these efforts to build the bird's self-esteem and forget Barnyard Dawg's maliciousness, the dog continually and unmercifully mocks the ostrich.
The bout takes place in a makeshift ring, contained beneath the farm's wooden water tower.