Now revised, this clear, step-by-step guide shows how to develop any of the popular retriever breeds from a seven-week-old pup into a finished hunting companion. This updated edition includes the use of new training equipment and new findings about a dog's mental development. For 30+ years, Wolters' unrivaled expertise at training dogs has saved millions of owners many months of wasted time & labor. This updated edition of Game Dog offers the most efficient system to train retrievers for hunting upland birds and waterfowl. With this concise new method, you can have a skilled hunting retriever by the time your dog is one year old. How to choose a pup; the 5 critical periods of a dog's mental development; which retrievers are easier to train - males or females; how to get two dogs to work together.