Bill, any idea what is a average hatch from a ribbon? (In a natural setting.) The reason I ask is, I must have ended up with at least 40 ribbons, and maybe more, but most of mine were on the ground. Granted, I put out the wrong type branches for them to use. I imagine I will see pretty low numbers of actual eggs hatched. My guess is you see a pretty high hatch rate at your place. Mine can only improve.
12 yr old pond, 1 ac, 15' deep. RES, YP, GS, FHM (no longer), HBG (decreasing), SMB, and HSB (only two have been seen in 5 yrs) I think that's about all I should put in my little pond. Otter attack in 2023.