I DIDN'T THINK ABOUT YELLOW GURGLE-POPS!!! Dagnabbit! I have a couple of those in my box!
I did go back yesterday. There are lots of Bluegill holding just under the floating crappie dock. I tossed a small popper around a bit, and caught a couple. I noticed that the the fish were slurping down anything floating on the top that looked buggy. I pawed through my box, until I found a midge emerger pattern that I had tied up early this Spring. The 'gills were just inhaling it! None of them were very big; most were just a couple inches long.