A large hawk has been haunting my poultry yard yesterday & today. It's about the same size as the geese & muscovies so I don't think it will attack them - it came out of the muscovy house today! leaving the geese & muscovies huddled together at the back. I worry about the chickens though; leghorns, buckeyes, ameracaunas & australorps - all adult size & several roosters. They all hide under the porch & in their coops when the hawk is near & so far no casualties. Everyone is free range 24/7 on 3 acres. After 2 yrs of trying to get them all in each night & no predators, I had more success with allowing them to come in when they wanted which was usually after dark. My question: is there a deterrent that doesn't require me being in the yard & won't traumatize my birds (like an airgun or loud horn would). It's snowing with 2+ ft already on the ground & 7 degrees F for a high today so no outside work on increasing security feasible, & it's illegal to kill hawks in NY. My dogs won't go in the yard with the geese because the geese attack them. Would flags or streamers work? I can put them up easily along the fence. Any suggestions welcome. TIA