Question

Why dont chickens fly?

Answer 1

Fist thing is that question that help u on ur H.W

 chickens can fly, although even wild chickens are not very good flyers. They don't need to be: they are ground living birds and will only fly short distances to escape predators or get up into trees to roost.

Answer 2

Chickens are capable of flight, however their domestication doesn't require it of them. After hundreds of years of being cultivated by humans, chickens have evolved to be less competent at flying than other birds. Chickens are ground feeders, which means they eat grubs and small plants. Since they do not need to hunt down prey like a hawk, they also do not need the wing strength to fly like one. Chickens are able to fly enough to access trees when they need to escape from predators.