We are suburban dwellers and have a small cottage backyard for our 5 chicken zone, no roos. But we still get a Cooper's Hawk and high-circling Red-tail Hawk occasionally. What we did to discourage any aerial predator losses is to set up a popup canopy in the backyard, a couple of low lean-to shelters on cinderblocks, 4 large recycled dog houses (the hens use these often), and stickery rosebushes and evergreen plants for the hens to hide/snooze in. The hawk will land on the yard fence or inside the patio and can see our hiding hens but for some reason hawks won't go after the hiding hens - darnedest thing and the Hawk will only be a few feet away from them. Guess the Hawks prefer open yard for swooping down on running chickens but we have many scattered shelters for the hens to hide and so far haven't lost one in 4 years of backyard free ranging - we have two froo-froo fluffy Silkies, an Ameraucana, and a Breda. The neighborhood Crows don't bother our chickens or their feed but the Crows will chase off the Hawks so we love our neighborhood Crows!
With some Silkie hatching eggs on the way and already planning what I want next year.
