Dams should be trained hunting dogs and she should possess the qualities you desire in your dog, not just in the sire. Dams project more influence on the litter than the sire. Good bitches are seldom mated to poor dogs, yet the opposite frequently occurs. A poor bitch is unlikely to produce good pups despite the virtues of the sire. Look closely for desirable traits and strength in the trailing bottom line of the pedigree That is the dam, granddam, great granddam, etc.
Excellent mothers are important.
Don't pick litters based solely on the number of titles in the pedigree. These are impressive achievements to be sure, but they are not indicators of natural tractability, temperament, and gamefinding ability. Nor do titles indicate whether the traits may be passed successfully to the offspring. Evaluate parents of pups based upon gundog standards important to your needs and their demonstrated ability to produce good pups. Seek out sires, dams and grandparents that project strong genetic traits that can be passed through to their offspring.