I used to keep a pair of Yellow Peach Faced Lovebirds and they used to poopy all over, including the walls of the cage and my house! They are very loud and like I said very messy. I gave mine to a local guy who had an outdoor avery and to this day they are still alive, it would make them around 4yrs old.
The best bird I kept has been a hand reared Budgie, he loved me to pieces. My friend has an African Grey and a Hycinth Macaw, they too are very loud and messy but very loving and intelligent.
Emma x