i would worry about a hamster wheel in the bird's age..even supervised. Lovebirds DO like rolling things though. i give mine a big round oatmeal container with the bottom 1/2 cut off so it's a big tube. I stand it on end and fill it with crumpled paper, "hand" toys and what not. They get in the container,throw everything out of it, then tip it over ,stand in it and roll it around the cage...sometimes they stand on top of it and roll it around.