Bebe the love bird loves the shred paper. In this video, she has a purpose for it: she’s tucking them into her tail feathers to make a longer, more attractive tail for herself. Love Birds aren’t all that different from humans, now, are they?
To be honest, this behavior has been observed in the wild. It's a bird trick for hauling more nest material than will fit in one's beak. This way she can carry more in fewer trips! -via Tastefully Offensive