Have a large fenced yard where our chickens forage and a secure coop where they are locked up at night. Found picked clean bones and a pile of plucked feathers at the edge of the yard this week. When I counted I was missing 3 adult hens and a few of my 2 month old chicks which now go outside. Our fenced yard is large but near to our house so we should hear a ruckus with 3 geese in the yard as well (but alas no adult roosters as yet). We think it may be a hawk so are making a movable scarecrow plus hanging up shiny ribbons used to scare birds from fruit trees. Think that may distract him. Already have a fake owl on a pole in the garden but he is obviously not afraid of him!!! Anybody have any other ideas? Could it be a raccoon or opossum attacking during the daylight hours? We haven't actually seen a hawk, but we normally have a red-tailed hawk flying over our fields in past summers.