Not 100% sure but after checking specimen to pics on some sites pretty sure there was a nice baetis hatch yesterday afternoon. Wondering are these Blue Winged Olives, small 6mm brown 2 tails one wing?
Yeah things are hatching thats for sure.. Good news!
"The Grand River tailwater brown trout waters have begun to come alive! BWOs we're hatching all afternoon today. A few trout were rising. Water temps in the upper section are around 46-47f. Here's a little video of bug activity from this afternoon. http://youtu.be/keIoTYNn7_g"