So I just read up on eucalyptus and it's benefits for budgies, and lucky for me, I have a eucalyptus tree in my garden that just had a huge branch fall off after a heavy wind. I tore off a smaller branch from the fallen bit to bring in for Kowhai to play on. You've never seen a happier bird! He quickly made it his own and stripped the bark and is shredding the leaves (which leaves a beautiful natural smell in the air!) and is just loving napping in the branches.