I've managed to get a closer look -- and it's not clear whether they are healed or not, they do not look comfortable at all -- and only one of the five seems to be trouble-free. upon closer inspection, the cockerel is missing most of a middle toe, the isbar pullet is the worst off with two entire toes missing, and clearly having trouble putting weight on that foot (although not "acting sick," she's hopping around eating and etc.), then one marans is missing both back toes, and the other marans seems to have intact feet but is limping.
there's no string or anything they could get caught on, and i don't see how ALL of them could have injured themselves that way -- but the pens are made of hardware cloth, and i don't see any signs of rodents getting in (no droppings etc) or anything else trying to break in. they roost up near the top of their pen, and i can't see how anything could reach them there if it wasn't already IN the pen?
this is so disturbing -- and I don't know what to do for the birds, i don't have an empty pen to move them to, nor am I sure how to treat their feet, or just leave them alone & hope they heal? argh, hate feeling so helpless/clueless!