Chicken waddling like a duck

[urabus]

I see lots of messages about the dark green poo, which is one of the symptoms, but I now have two chickens walking with their legs spread apart, tails hiked up, just like they are egg bound. They still eat and run for treats. One sits a lot. I checked their anuses and they are clear and open. I'm wondering if it's something in the digestive system. Do they make antibiotics for chickens? I don't know if they are still laying because I have six chickens just alike and I don't know what egg belongs to who. They are 2 years, 4 months old.

 

[Nomadicus]

I see lots of messages about the dark green poo, which is one of the symptoms, but I now have two chickens walking with their legs spread apart, tails hiked up, just like they are egg bound. They still eat and run for treats. One sits a lot. I checked their anuses and they are clear and open. I'm wondering if it's something in the digestive system. Do they make antibiotics for chickens? I don't know if they are still laying because I have six chickens just alike and I don't know what egg belongs to who. They are 2 years, 4 months old.

They make antibiotics for chickens but they are now by prescription only from a vet.