Hello, I recently decided to get a perch for my African Grey who is a heavy chewer. I was looking for something that might keep her nails trimmed but thats also comfortable and won't cause sores. I was thinking about maybe a calcium or those cuttlefish perches but not sure how good they will be for the nails. I was also reading about the negative effects of sand perches. What type of perches do you normally use? So far my grey has had wooden ones but she always chews through them. Thanks for any future advice, just thought this would be a nice discussion.