Anyone know how to tell if cardboard is safe? I thought about ordering a 100 small 4" boxes to use as foraging toys, but I don't know what to look for.
That's a good question. Cardboard can have glue on it if you use it from paper towels or toilet paper. Boxes even can have glue and other things that probably are not good for our birds. Keep searching the forum for folks who make their own toys maybe the will have an answer that can help.