I am deciding on getting pullets from tsc or hatching Arkansas blue egg layers and pita pintas
It is a tough one! Getting the pullets will get eggs faster but the other breeds are very nice.
They are not round worms. They might be tapeworms. You need to figure it out though. since different worm medicine treats them.
Look at internet images or take a sample to a vet. Do not tell them it is chicken poo though