I have had BG on the beds for the last 3 1/2 months. The males are actively defending the nests but I have only observed a mating pair on a nest twice in all that time. I am thinking that I have hybrid BG which might explain the abundance of beds as well as the shortage of females. Am I off base with this thinking? I have only owned the pond for 8 months so this is the first year of spawning activity I have been able to observe.