Thought I would bring up this topic again to add info. This year I have been keeping close watch on the BG and RES spawn times. Due to early season hot then cold temps the BG are a little off their normal schedule but close. Only the April (the second) spawn was off about 7 days (late). Other than that event each month there has been a BG spawn peaking on the full moon (March , April , May and June).
The RES normally will spawn twice March and April. They started off that way this year. However the RES (or some of them but more than just a few) also spawned on the full moon in May and the week after the full moon in June.

It looks a little like a rolling RES spawn this summer. Unusual and worth watching. It may be a result of adding RES and growing them out last fall at 2-3 inches behind a blocking net. However both ponds had the same fish added but only 1 of them has exhibited the rolling RES spawn.