Round worms in chickens look like this :
View attachment 3835812
Image from
https://poultrykeeper.com/digestive-system-problems/chicken-roundworms-or-ascarida-galli/
Tapeworms show up in poop as segments looking like moving rice grain
View attachment 3835814
Please people, think twice about worming your chickens if you are not at least 80% sure they have worms. It may not harm them but the dewormer will be in their poop and kill actually useful other beings for the environment, which ends up being toxic both for the soil and for biodiversity.
Not to mention that the more you use a dewormer the more chance helminths in your environment will become resistant.
Not saying you shouldn't use chemical dewormers. I do, but only after evaluating if it's really needed for an individual chicken. I can't get fecal floats where I live.
And by the way, Ivermectin is one of the worse. It's killing professional bee keeping in my region due to the sheeps.