Jack is 4 months, 1 week, and 2 days old today and weighs 36 pounds. He is almost infallible about coming on command, sits when told, and is doing pretty well on "waiting" to be released to eat when I put his bowl down in front of him. He and Emma spend a lot of time "hunting" together: checking out brushpiles, treelines, hedgerows, that sort of thing. He has always been very interested in what she was doing and now he can easily keep up and that attention toward her and her methods has increased about four-fold. I'll have to wait until he gets his adult teeth to start him on retrieving, but he is already very good about bringing me stuff and putting it down when I tell him to. Well, most of the time anyway.
If you could walk in the field with a pair of eager bird-dogs and not feel the pure, unadulterated joy radiating from them, then you have no soul. To me, they are a constant delight.