@onmelissa
I know you said that you found dark blood in the stool. But I'm going to throw this out just for thought.
I found blood on my roosts once. I got the birds and examined them thinking that it was possibly bleeding feet, etc. Saw no signs of foot issues and no other visible blood except for some quite large drops on the roost bar in front of the nest boxes.
Later I learned that it was blood drops from the COMB. It seems that either one of the other birds had bitten a comb or the comb had been injured somehow. There was just the tiniest dark spot on the comb where it had been bleeding. I didn't even think of that so I hadn't even noticed that there was a tiny scab.
I know you said that you found dark blood in the stool. But I'm going to throw this out just for thought.
I found blood on my roosts once. I got the birds and examined them thinking that it was possibly bleeding feet, etc. Saw no signs of foot issues and no other visible blood except for some quite large drops on the roost bar in front of the nest boxes.
Later I learned that it was blood drops from the COMB. It seems that either one of the other birds had bitten a comb or the comb had been injured somehow. There was just the tiniest dark spot on the comb where it had been bleeding. I didn't even think of that so I hadn't even noticed that there was a tiny scab.