I’m curious about chickens doing better in flocks. My daughter and SIL bought a big new house on 15 acres, half wooded. She plans to buy 3 chickens and let them peck around on the ground in a fenced area with of course a wee henhouse. Is that a problem?
Hawks, skunks, raccoons. Have her do research. Use diatomaceous earth (food grade) etc. it’s a lot more than just a fence and a coop.
Three chickens is a good comfortable number. I once had four and the problem was they paired off. One pair would bully the other pair. With three they were always together. In case one chick gets attacked by a predator, you still have two. Also, chicks warn other chicks of predators and that when you see them flying around screaming.
Never have one chick unless you intent to bring it indoors and be a pet.