Took a trip to the RDR two weeks ago. Water was high...too high down stream of the dam. So went to the dam and fished right at it. It was fast but fishable there. Against the dam wall it was not fishable though and was very turbulent. So fished a bit down from there. Had several hits that I'm sure were walleye. After landing nothing went around to the opposite side of the dam. I could see a couple of pelicans gobbling some fish down regularly. Once I got over there I figured what they were eating, prussian carp.
I was looking to cast out and something caught my eye. It was school of them practically at my feet. There were about 3 different schools and maybe over 100 of them between all 3 schools. As the water would surge they would get pushed towards the shore or against the wall of the dam. The pelicans were along the wall of the dam and were enjoying easy pickings. After an hour there were about 7 pelicans doing the same. Good for them!
I also casted into the school when the got close. They readily took a small san juan worm imitation. And unbaited too. I landed quite a few of the buggers to get the skunk off. Fun but not that fun really. First time I've come across then since hearing about the invasion.
From my observations, I think the bird life is enjoying predation rather than the pike. Those pelicans really gobbled down a lot in the couple of hours I was there.