Hi, I have had a nasty episode in my outside run, a python came and killed two hens (there was a small hole in the night coop, still baffles me how a 3 meter python squeezes through a 3 cm hole, but anyway, it happened, hole is now closed). Two days later one of the surviving hens got ill, yellow/ green poo and lethargic, died in two days. I gave it metrogyl (antibiotic) but did nothing. Then another died a day after. I had a stool sample of the surviving hen analysed, as I was worried it was coccidiosis. Stool sample only showed 'motile bacteria' so no idea why the metrogyl did not work. Vet is now suggesting another antibiotic, but I am hesitant as the hen has no symptoms, just a low appetite. But I have no idea what would be a normal amount for her to eat, she is only 4/5 months old and not laying yet. But she eats less than my 5 week old ones. She mostly eats mealworms which I gave her as a treat since she is a bit sad & lonely & possible ill. Which brings me to my main point: I have 3 chicks that are around 5 weeks old and I want to put in the run as they are outgrowing the small cage they are in. Who can I make sure the run is safe? I have cleaned the night indoor coop with bleach. But what about the outside run. It is fairly large, 3 by 5 meters. And should I give the pullet that is out there the antibiotic to make sure she is 'clean' to protect the chicks? Normally I'd rather not give too much antibiotic to not screw up their gut health. Shoudl I wait longer to let them grow bigger? Put them outside short periods to get used to it? There is only the one pullet now in a large space, so not worried much about harassment.