My thanks to each of you for trying to answer my question. I have had black labs, yellow labs, american labs, english labs, show labs, and hunting labs.....so I'm not exactly a stranger to labs. However, all my labs came with one important feature....AKC papers! Then you know the dogs are pure, and how old they are. When I saw this guy walk out of the brush and onto the highway with no tags, I felt he was a yellow lab for sure, ...but upon closer examination, he had a broader head and shorter muzzel that most labs. His eyes are dark brown, and the lids, lips, and nose are jet black. If I could put up a picture (I have dialup connectin and it doesn't seem to work on pictures) you would swear he is a english show lab. Having rehomed a pitbull recently, I spent 6 months with her first, I know they are solid muscle and bond like glue to their owner, and tend to smell funny..it's like the sweat or something. This dog has all those qualities, so I'm guessing a mix. Also, this yellow "lab" has black or purple skin on belly and inside legs.
I found another breed that looks exactly like this dog, called a "Kemmer", which is a deliberate crossbreed used to hunt wild hogs here in Texas and other big game throughout the Souther States...but those breeders are unclear as to what he is also. I am trying to train him as a duck dog, but he seems to lack the natural instincts of the Labrador, hence my question about black in the roof of the mouth, of which he has a lttle.