For me, the answer to this question is dependent on the answer to a question I'll ask now--is Cooper just for loving, or will his dad be hunting with him?
There's a B-I-I-I-G difference in the answer!
If Cooper's going to be his daddy's hunting buddy, then there are two schools of thought about pups.
School A says that it's best to have pups that are within a month or two of each other, so they can train as a hunting pair. (I know guys who deliberately choose littermates under this theory. It makes for a tough first year, but they swear the result is worth it.) If DH is going to want to hunt with a pair by next year, you should find Cooper a partner in crime pretty quick. Also, find some clinics for dad and the pups to go to, as it will help with training immensely.
School B says that there should be at least 3-4 years between dogs. This will allow you to get a really proficient, steady hunter well in hand before you introduce a new pup to the mix. This school also holds the belief that pup will become a better hunter by learning from big bro/sis. This school of thought encourages the acquisition of a puppy on a planned schedule, so you can retire your dogs into the house as they 8-9 years of age, but still never be without a 'pair'. It also gives serious hunters time to research their next pup's kennel.
If Cooper's NOT going to be hunting, then I disagree a little with the idea that you should 'match' breeds with him, just because he IS a birding breed.
I've been around hunters and their various dogs all my life. My observation of bird dogs--be they a retriever, a pointer or a spaniel--is that their natural birdiness is usually strongly reinforced when they're with another birdy dog. And if bird dogs aren't using those instincts to hunt, they seem to get a little frustrated--lots of barking and over-rough play, obedience issues, stuff like that. Because both dogs KNOW they're supposed to DO something about those doggoned birds--they just don't know what it is, and you're not helping them figure it out!
If Cooper's NOT going to be hunting with his dad, I would give it 18-24 months, and then get a hound or a working breed dog.
My friend Lucy (who's blind) has been very happy alternating her guide dogs between a golden or a lab, followed by a shepherd, then golden or lab. Even as well trained as guide dogs HAVE to be, she found that it was much better to NOT to have 2 bird dogs in the house when she was retiring one dog from active service. Once the work harness came off, the birding would begin
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