I've also found that certain breeds are a bit more daring in their wandering. I love EEs, but I can't seem to keep them alive. They always wander the farthest, jump fences, and do as they please. I lose them to predators every time. My bantam Cochins are cautious. They stick closer to the coop...
I do love a good rooster. Good, being the key word. I lost a wonderful rooster to a rotten dog last year. I have a Russian Orloff cockerel now. I'm hoping he is a gentleman.
Cover seems the best way to manage. That and having crows around. I didn't even see a hawk last year because we had a nest of crows on the property line. Talk about management! They ran off all the birds of prey. Seems they've moved on this year, which is pretty disappointing.
I feel for you. I'm also in Washington state, and the eagles are especially prolific this year. I free range in my orchard as well and lost my little call hen last month to a giant bald eagle. Came right up next to the house to get her. I witnessed three additional attempts at my standard ducks...