Domestic chickens are not capable of long distance flight, although lighter birds are generally capable of flying for short distances, such as over fences or into trees (where they would naturally roost). Chickens may occasionally fly briefly to explore their surroundings, but generally do so only to flee perceived danger.
So…yeah chickens do fly short distances, unless they weigh too much.
The flight of chickens is much like that of wild turkeys, which they resemble somewhat. A turkey flies when it roosts at night and whenever it sees or hears a predator, which may not happen every day.
The point is, since these two similar species have similar flight habits, and one of them is not domesticated, it's misleading for the editors to say "domestic chickens are not capable..." as if there were some ancient ancestor chicken that soared with the eagles.
Domestic chickens are not capable of long distance flight, although lighter birds are generally capable of flying for short distances, such as over fences or into trees (where they would naturally roost). Chickens may occasionally fly briefly to explore their surroundings, but generally do so only to flee perceived danger.
So…yeah chickens do fly short distances, unless they weigh too much.