Other mistake: Philip De Guard is the cartoon's layout artist, yet when we see his name in the opening credits, it is spelled "Phillip" instead of the usual "Philip."
Guided Muscle (1955)
1 other mistake - chronological order
Continuity mistake: The book the coyote is reading has "How to Tar and Feather A Road Runner - 10th Printing" on the front cover, but when we see the coyote reading the book in the next shot, the words have disappeared.