Has anyone frozen nuts in shells? I never really thought about doing it until I was reading an article today. My macaw loves nuts in shells (especially walnuts) as a treat but they aren't easy to come by where I live, apart from this time of year when they are sold in supermarkets for Christmas, so this is really the only time of year he gets them. But if they actually store well in the freezer I will do that and have enough until next Christmas. Anyone done it and their parrot still enjoy them once defrosted?