Kentucky Fried Chicken is the first fast food chain in the UK to comply with better chicken welfare standards.
The idea is to work with our suppliers to ensure that there is a minimum standard across the industry by 2026.
It means that birds have more space and natural light, can swing their wings and flap their wings.
This measure is an attempt to improve the conditions of large-scale meat production.
Other stores, such as McDonald 's and Burger King, are expected to put pressure on them to do the same.
Both supermarkets and restaurants have urged to commit to European chicken commitments signed by animal rights organizations, including the RSPCA.
"Signing the European Chicken Pledge is not just for us," said KFC UK and Ireland's Paula MacKenzie.
"Chicken is our business and we have a responsibility as a chicken brand to promote chicken welfare standards across the supply chain.
"Our customers are interested in improving the life of the chicken we live in."
However, KFC purchases only about 4% of the UK chicken market. Other takeout stores are expected to follow.
McDonald 's said he did not sign the European Chicken Commitment, but he is doing something else in Newsbeat to improve chicken welfare.
"In October 2017, we announced eight commitments to improve chicken health and welfare results in the global supply chain by 2024.
Includes lighting improvements and chick storage.
KFC was criticized for using antibiotics-treated poultry in 2016. This new move has received praise from animal welfare charities.
"This commitment will help millions of chickens live through the supply chain each year," says Vicky Bond, Managing Director of Humane League UK.
"We urge the rest of the field and other food companies to follow their footsteps."
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