I've seen this very dark greenish-brown, shiny, sticky, tarry and STINKY poops for several days now, and I got a couple pics today when cleaning the poop trays. Should I worry? Do I have a sick bird? Everybody seems to be behaving normally, although I know that's not much of an indicator, as chickens tend to act normal until they're at death's door. There was one broken shell-less egg in the poop tray near the second specimen, but no idea if they are connected in any way. Thanks.