The wee peas still won't touch mash, but they have become crazy for bread. I have the fish powder that @casportpony mentioned, API General Cure, which has the added benefit of having some praziquantel with it. Each powder packet has 250 mg of metronidazole and 75 mg of praziquantel.
Since I expanded the pen for the wee peas, I can still segregate birds... I think I can herd one bird at a time in there and get the required amount of meds into it, if I lace the bread with it. Worked really well with the safeguard, only I did them in a group and counted who had what. For this, I will take the time to separate them.
If I absolutely have to, I will catch birds... they just aren't accustomed to being handled, and I am afraid in their panic that they will get hurt.
I know two of the males were pooping normally this morning, because I watched them. I kinda think maybe only one bird is doing this, since I didn't see any more bad poo than the one. But I am trying to decide whether to treat the whole flock with the metronidazole, or just the sick bird (if I can identify it), or the four birds I didn't see poop, if I can't identify which one. Kathy, what would you recommend?
If I had even a little more idea which bird it was, I think I'd try to stuff it into a crate until it pooped for a day or two.
I thought about trying to pluck them off of the roost at night, but when I go out egg patrolling, they've all been waking up and demanding to know why the heck I'm in the birdhouse so late at night. So not thinking these guys are gonna go pea-cefully, even after dark