McDonald's, KFC, Pizza Hut and Nando's have been rated as "very poor" for chicken welfare.
A report from World Animal Protection says the restaurant chains aren't doing enough to improve the lives of chickens.
It claims billions of them are being crammed into cages with space smaller than an A4 piece of paper.
The group has rated Domino's as "failing" and Burger King, Starbucks and Subway as "poor".
