It probably depends on the species of hawk, the breed of chicken and maybe the forest type. The woods here are filled with yaupon holly which grows horizontally
The one time I saw a hawk attack directly in front of me, the hawk crashed into a juvenile yaupon maybe 2 feet tall
I've had many dogs invade here thinking they could score an easy meal and not once has a chicken been harmed. The foxes barely even try anymore either
With the correct breeds, region and terrain predation truly becomes irrelevant
Free-ranging chickens is like baking a cake. It requires the...