You can use the Permethrin in 5-7 day intervals to treat the mites. They can be extremely hard to get rid of.
I'd re-check the birds to make sure that they have no mites on them, mites will suck the life out of them, make them sick or can sometimes kill a bird.
Ivermectin Pour On can be used to treat mites on the birds too, but the mites still have to be eliminated from housing or they will continue to infest the birds no matter what treatments you apply to the birds.
Try different methods to get rid of the rodents, those are also a challenge. You may find that you have to change tactics, trap some, poison some, etc. I use covered traps that I can put in my runs or around the outside so my dog doesn't get snapped or the chickens can't either. Regular snap traps can also be used, just place something like a milk crate over them so the birds or other animals can't get to them, but the rodents can.
Poison is a bit scary to use, but if you read up on methods and strategically place the bait stations away from the birds or other animals, most of the time you can use those too.
Do you have photos of your birds and their feet, their poop, etc.?