anybody know if orange tree branches are safe for cockatiels? I have an orange tree in the yard and was thinking of making a few custom perches for my aviary and indoor babies, but was unsure if they were safe and non-toxic to use...

Hi everyone, I'm a new cockatiel owner and this is my first question here. I put a couple of natural tree branches in the cage that the birds seem to like very much. They constantly chew on them. They love to tear the bark off, but I am worried that they are eating it. When I watch them usually...