Charlie, being a bird dog, wanted to eat them bad. At least that's what he acted like. The few times he got at them he'd chase them while they were running, but as soon as they were cornered he'd stab them with his nose and go into a point. I never trusted him loose with them though.
Surprisingly, the borzois were a lot more reliable with them. Strider chased one once, but dropped like a ton of rocks when I screamed at him to down mid-chase. Kaia took a little more work, but she eventually chilled out with them too. After a while they just learned that the chickens belonged to us, and then they started being protective of the birds. Like when our neighbor's ridgeback came into our yard and started chasing them, and Strider jumped the fence to bodyslam it and barked until it went away.He really wanted to eat them pretty bad at first. The dog zen training helps a ton to teach them this kind of impulse control.