In my 1.5 acre pellet fed pond the coppernose bluegill is ambushed during feeding time by the Florida & Northern LMB I have stocked. Same as behavior mentioned above. I will not begin fishing for the LMB until next July/August. When I start fishing specifically for Bass it will be for harvest, so I won't be able to keep too many of them.
What I have noticed while fishing for the coppernose bg and redear this year, is that almost everytime I go fishing I will inadvertantly catch a bass. I'll hook a bluegill and the bass will take the bluegill or at least attempt it and get hooked. Sometimes I'll pull in the bass with the bluegill fins holding onto the bass. Its happening so much that I've been getting to the point of worrying about the bass not eating anymore bg due to their being caught on them hehe. However, I don't see that happening so far. It appears that if I wanted to guarantee catches of LMB I should simply use the bg that I catch as bait.