No tails and some bald backs and other spots.

[nuthatched]

Ok

They're just entertaining , nothing needed for them. :]

 

[Hannah J]

Ok my parents kept telling me that they were probably just bored cause it’s just dirt and there’s not much for them to do so we were trying to do stuff to keep them more entertained

 

[nuthatched]

Ok my parents kept telling me that they were probably just bored cause it’s just dirt and there’s not much for them to do so we were trying to do stuff to keep them more entertained

You could add some roost bars from old wood, rake some leaves or hay in there for them to scratch through, they'll love it.

 

[Hannah J]

Ok thank you!

 

[StinkyAcres]

Ok my parents kept telling me that they were probably just bored cause it’s just dirt and there’s not much for them to do so we were trying to do stuff to keep them more entertained

I'm thinking your parents are probably right and the boredom is resulting in feather picking. Have you considered expanding their run, perhaps with portable poultry netting? Do they have a dust bathing area?

 

[Hannah J]

Their whole run is dirt that they dust bathe in everyday. I’ve tried giving them a fist bathing spot but they choose random spots around the coop anyway. We also have lots of predators so I’m too scared to just use netting

 

[chickenbreederinchina]

Hey, I’ve had something similar happen with a few of my hens. If they’ve been missing tail feathers for that long, and now some have bald spots on their necks too, it could be a few things.
You already ruled out mites and haven’t seen any pecking—so that’s good. But sometimes feather picking happens at night on the roost, and it’s easy to miss, even with a camera.
Molting could also be the cause, especially if they’re close to two years old. Some hens just don’t grow feathers back quickly, especially if they’re stressed or if it’s been really hot lately (which you mentioned).
You might want to check their feed—low protein can slow down feather regrowth. I’ve had better results when I give mine a little boost during molt, like scrambled eggs or a higher-protein ration.
Getting four eggs today is a good sign, though. If they’re eating, acting normal, and still laying, it’s probably not something major. But I’d keep an eye on those bald spots and see if they’re getting worse.