Love the photo leenie!
I have a 4 yr old golden retreiver. When the chicks were little last year, she was kept seperate from them. Not that she would TRY to hurt the chickens, but Rory would just want to "play" too rough. As the birds grew bigger, I would let them free range w/Rory on leash. Then w/Rory next to me, off leash. Then they were all allowed to roam the yard as long as I was out with them. My husband just commented yesterday how the chickens would stay outside the open coop free ranging near dusk when the dog was outside. As soon as the dog came into the house, all the birds went into their coop. He thinks they actually feel SAFER outside with the dog than without her! All dogs have different temperments...and I guess the birds might too. Every situation with a dog is individual.