When I knew I was going to write a thread about this subject I kind of giggled like a young school girl in sex Ed class....something's we don't talk about but this is important. One of my flock members had been pooping a very very dark colored stool.turning black once dry and I'm concerned that it could then affect the rest of my girls! Help! Anyone know what could be causing it? And how to treat the one that's doing it? Warning pic included....