Greetings
SwtGrc,
I am so very sorry that you lost your hen to a coyote. I know how crushing it is to lose a beloved pet to a predator. I lost my black Ameruacana, Inky, last August to a bob cat. It jumped our 6 foot wrought iron fence, and grabbed Inky. I ran out of the house when I heard the commotion, but it hopped back over the fence with Inky. That animal was so powerful and fast, I was helpless. Sigh...
My rooster was also attacked, by a coyote over two years ago. But, thankfully he survived the attack, because I was near by, and ran to his rescue.
Hawks and large eagles, fly over daily. There are so many predators out there. It is impossible to prevent them from stalking your chickens. They are just doing what they were designed for, hunting. I fenced my entire two acres, with a 6 foot pole/welded wire fence, other parts have a five foot wood fence, we also have electrified the portion of fence that faces wilderness (250 feet). We have a good dog, motion detectors that alert us in the house, and predator eyes around the run for night time.
But, the very best security system, is me. I wear a hunting knife on my hip, keep a long pole with me, and I monitor my chickens along with my dog, while they are out foraging. I haven't lost a chicken since I started to do security detail. My dog alerted me to, two bob cats at the edge of my property, just this week! If I can't be out there, the chickens have to stay in their secured run. I let them out from 3-6 p.m., and I clean up or just sit and watch them. I have come to enjoy this activity, they are so entertaining, and they need their exercise too.
So, yes, security detail is the best deterrent for predators. But, be aware...a coyote will come into your property, even if you are there, if it is hungry enough to risk it. That's what happened the day my rooster was attacked. You just can't underestimate a predator of any kind. You just have to be ready to rock and roll!
There's always going to be some risk, but you can minimize it.
These are my thought on predators, I hope they have been helpful.
God Bless