Thanks - it seems the consensus is that it is an LMB. Now that I look at the mouth it sure seems that way. I was not aware that they could/would discolor. If nothing else this conversation has pushed me over the edge on addressing the water quality issues. Water isn't horrible because fish are healthy and growing but it is cause for concern. We finally received rain, seven inches, during the last hurricane. Unfortunately we had quite a bit of shore exposed, which is clay rich, due to the pond being so low and we also had done some clearing in the dry creek bed that runs into the pond so the water is very brown now and taking a long time to clear. I finally figured out that running the aeration was keeping the suspended clay from settling out so have shut that down but it is very slow to clear and it was never super clear to start with.

I may ask for more help on that issue but will move it to a different thread. Thanks again...............