All hawks and owls are federally protected under the Migratory Bird Treaty Act (16 USC, 703-711). These laws strictly prohibit the capture, killing, or possession of hawks or owls without special permit. No permits are required to scare depredating migratory birds except for endangered or threatened species
Thank you for the reply! I'm glad I asked before doing something illegal since we have recently seen two hawks hanging out around our chickens.