That was my guess too, for what it is worth. All the fish coming out of this sediment pond are fairly washed out in color because of the recent rains and sediment in the water it is pretty turbid.
I wasn't really wanting to catch these breeder RES in case they were on the nest. But if it was a female, she would not be guarding a nest anyway. She did not appear to be plump full of eggs, so I assume her job was already over.
