My parrots are funny the way they 'decorate'. Kong likes a 'half and half' tank where one side is bare and wide open and the other half is full with plants. Tango takes the tallest plants and makes a partition wall on one side where he sleeps. Behind the partition is open and on the other side are plants. Boss doesn't like red plants. I put them near his hide four times and he pulled them up four times. All of them will leave bare areas of glass, Tango does it the most. I discovered Kong likes purple plants because that's the color she always puts near her hutch.