Still searching for help for them. I’m staying with my parents at the moment and my mother is trying so hard to get me to put them back by the lake, I won’t. But there is definitely a lot of stress and tension with this situation. Not to mention, my cat just brought me a baby squirrel. Again, cannot make this stuff up.No need to apologize, I know how it can be sometimes.
Don't worry too much about the difference in stool, there are several factors that can dictate why each bird is producing different looking stools ranging from age, to how much they're eating, how much one's drinking, if they're laying, so many factors to consider.
You are right about the forage sediment, these are meat birds, and the way they were raised when young likely didn't teach them any survival skills, they're also too heavy to properly fly away from predators, so to make it short, I highly doubt they would have survived much longer if you didn't bring them in.
I don't think so either, I've seen much worse birds then this, and they recovered fine, just took a little TLC and time.