Bald eagles occasionally visit my farm. On multiple occasions, I have seen them swoop in and carry off a duck, leaving almost no evidence. They eventually eat my entire flock, so I periodically need to restock.
Even when I catch them in the act, I cannot yell at them for it, because that would be "hazing". They are federally prohibited from any sort of interference, so they have learned that there is a consequence-free dine-and-dash buffet here.
These experiences enlightened me as to why some farmers prefer the "3S" approach to predator management: Shoot, Shovel, and Shut up.