A DOG IS definitely hardmouthed if he chews, mangles, crushes, strips or eats birds," Jim said.
Then, too, hunting two inexperienced dogs together may lead to "contested" retrieves that can make both clogs hardmouthed.
If a pup's sire and dam are both hardmouthed, the pup will probably develop the same problem, he said.
A hardmouthed dog," Brad said, "might really clamp down on a bird; he might chew it; or he might refuse to give it up.
Brad said that some dogs are inclined by heredity to become hardmouthed.
Any retriever might rough up a bird now and then, for a number of reasons, but I won't call a dog hardmouthed until he has persisted in this behavior through all efforts to correct it.
In 99 percent of the cases, a dog that begins to rough birds up can be cured and will never become truly hardmouthed.
A hardmouthed dog renders birds unfit for the table," Jim Keller said.
If the sire or dam is hardmouthed, the pup will very likely develop this problem.