I live in a farmhouse surrounded by fields, and have two cats who have outdoor access pretty much 24/7/365. They are hunters with one specialising mainly in rodents and the other taking both rodents and birds. We have snow and ice atm, have had for a few days and it's not going to warm up much soon. They haven't caught much lately, but have killed three birds in as many days, two of them robins. (I had no idea we had more than one, but a third has appeared today.)
I do feel guilty about the birds, less so the rodents. I'm concerned that with this cold weather the birds are taking risks because they're hungry, and less alert for the same reason, and I'd like to feed them. But would a feeding station put them at more risk from the cats? And what kind of feeding station wouldn't attract rodents?