Some do, some don't. They are ground birds by nature, so if you do include a ramp, try to make it as shallow as you can.Ah I love this set up! The pull out trays must make life easier. Also is that a ramp I can see at the back? Can they move between the 2 levels? Just asking as I think I read somewhere that they don't really do stairs or somethingthough I could be very wrong!