I had a flock of 12 hens and one rooster that I was letting out of their run every day to free-range. All was going well until a preditor, I suspect a coyote, killed one so now there are 11 plus the rooster. Any suggestions on how and what to provide to supplement their regular feed and scratch now that they can no longer forage? I'm wary now about letting them out anymore and they so loved it! But it's sad to lose one. I know meal worms are great, I just have no idea how much to prove 12 birds.