You can also move her to the roost in the dead of night. She won't get off of it in the darkness and she'll wake up there in the AM. I think this helps for broodies too.
Hey Hey, let's see some pictures, we all like pictures of Rhode Island Red chickens & Ducks.
I have one production RIR, she lays a massive brown egg about daily.
If he's gonna make it, he'll absorb it. All you can really do is provide food, water, warmth. Keep away from other chicks if they're messing with him.
If he's acting pretty lively and eating/drinking, he should be OK.
Likely, just waiting until they self amputate will be OK. If you amputate you'd need to do it through healthy tissue and you might just create a greater chance of systemic infection. Certainly monitor above the site for redness/swelling in case you need to rethink or introduce an antibiotic...
Rooster laid an egg.
Well, instead of another poor rooster with a girls name. Meet, Buddy the Hen. She started laying big brown eggs this week. Very big comb and a very heavy bird.
They have to sort out the pecking order, and it may not be pretty. Make sure they have plenty of room to run around, maybe put food/water in more than one location. You can give them visual access instead of direct access and they can do a bit of their sorting out of pecking order with verbal...