Our whole group was/is molting. You can add birds just about any time, I don't think molting changes anything like that. The biggest thing to watch for is egg eating while they're molting, because they need a lot of extra protein to regrow those feathers. I give mine a couple scoops of Calf Manna with each feeding, and make sure they get BOSS every other day or so. The last two years I've also added alfalfa bales to the chickens run, along with the straw bales I get them. This gives them scratching and protein. I also worm them during molt, which we just did last night, since we aren't getting many eggs anyways. I found that I have to use the horse wormer, for tapeworms, when it's super wet out. So, I only do one dose, instead of redoing after ten days. I have decided after this last worming, to use the rooster booster brand of wormer, because there is no egg withdrawal time, and that's pretty cool.
We have an order of Salmon Faverolles coming in September, which is quite exciting. They're going to be vaccinated, and we are hoping that allows them to live past 30 weeks. All of our Swedish got sick, and I really do not want a repeat of that.
I was worried that adding more hens would stress my molting ladies more. I didn't know if that would be extra worse with the stress from molting already happening. My poor ladies just look terrible! This is rough to watch. LOL I'll have to throw some alfalfa in there tomorrow since I won't be able to get any supplemental feed for protein until payday. I wonder if they would start eating the black oil sunflower seeds now that they need extra protein. The only bird that has been eating those is the peacock. I really like using the Rooster Booster brand wormer. Super easy to use.