User blog comment:Brigadier Barty/Cannibalism in Redwall/@comment-5156759-20130428120401/@comment-1427879-20130429003109

Most creatures in the Redwall Universe regard it as cannibalism due to the level of interaction between beasts. Of course, the woodlanders expressed distaste at the eating of birds, too, and only ate seafood.

Besides seafood, I think eating of any other animals in general would be abnormal, even depending on the characters as Folgrim is considered odd. As for Cluny, well, we can't always count Redwall as canon.