You can't reinforce the fences so that Predators can't get in and your birds can't get out? Just as cat owners can't blame people for running over their cats if they choose to let them outside, it's weird for people to hold predators accountable for actions that are instinctual to them when you...
Opossums are actually not rodents despite looking the part, also they help curb the rodent population, they feed on mice and rats. Please spare these little guys. They're just trying to survive and probably have offspring they have to feed<3
Please don't kill possums, they're just trying to survive. They actually eat rats and mice so they are useful animals to keep for pest control. Relocate them, don't kill <3