Well that was new and different! I keep a flock of laying hens, have for most of 30 years.
I've lost birds to Eagles, Hawks and a Great Horned Owl. Nothing you can do about that, they're protected and you're in DEEP doo-doo if you harm one.
Also lost birds to foxes (2 for 4 there, so far) a weasel/marten (batting 1000) and tonight I shot a BIG female bobcat that was inside the chainlink fence I use for a chicken pen. Thought at first it was another fox, but then I saw it jump flat-footed from the ground to a 7 foot roof on the old sheep shed.
Maine law allows for such "lethal methods" on a pretty extensive list of four-footed predators as long as you call the warden after the fact to notify them.
I did, and he said he'll drop off a tag in the morning in case I want to mount it...