Everything looks good; plenty of space in the pen and coop, feed etc...also ensure they have fresh water to drink at all times.
If they continue picking and pecking each other, you know where to order the Pinless Peepers.
Once birds start picking and pecking each other, it becomes a learned norm and will continue to do it.
Increasing protein, increasing space, free ranging...it doesnt matter.
Peepers are the way to go, otherwise get rid of the birds and start over with a smaller flock or increase space for a new...
It could possibly be wet fowl pox, which can infect the nares. Wet pox can also infect inside the mouth and esophagus.
Look inside her mouth for lesions, a telltale sign of wet fowl pox. Dry pox lesions are infective and if a scab is picked at on the skin, or fallen onto the ground and picked...
You have picking and pecking going on in your flock. Pinless peepers will put a stop to it. You will need the pliers to put them on or take them off. Here's a link:
https://www.ebay.com/sch/i.html?_nkw=pinless+peepers&_sacat=0&_from=R40&_trksid=p2540003.m570.l1313
I have some questions for you:
How old is your chicken?
What did you give her to get rid of the tapeworms?
What chicken feed are you giving her?
Does she free range on your property or is she penned all the time?
Here's where you can purchase Albendazole, same as Valbazen which is not marketed as Valbazen no more. It is marketed as Albendazole.
Unfortunately it has gone up in price, like everything else.
https://horseprerace.com/albendazole-oral-liquid-for-horses-cattle-sheep-500ml
Use Equimax horse...
By the time you see worms in feces, damage has already occurred to intestinal lining. Worms slowly suck the life out of chicken. They are reproducing and their eggs are excreted onto the soil.
Birds constantly peck the soil, pick up the eggs and are swallowed, starting the worms lifecycle all...