Not Legal Advice: Dubbing of game birds has a long history and there are a couple of reasons it is done today. One of those reasons is simply tradition.
As the name “game” implies, these are chicken breeds that were traditionally bred for fighting purposes. During a fight, the wattles, combs and earlobes were almost like handles for the opposing rooster to grab hold of, and terrible wounds could result if they were torn off. As chicken fighting is now illegal in 50 states, no one needs to worry about that anymore.
The second reason people maintain that dubbing is good for game birds are more reasonable. If a bird lives in a cold climate and is not dubbed, frostbite can cause serious problems. However, there is fault in the logic of dubbing only game birds in cold climates because other birds with similar wattles, combs and earlobes can suffer frostbite as well. No one suggests that other breeds should be dubbed.
Check out these top ten facts about roosters shared by Express.co.uk.