The feet of birds have unique requirements. The use of small or single diameter perches is very unhealthy for bird feet. Additionally, perches that are too hard can cause painful sores on your birds' feet.
Birds need softer, varying sizes and varying textures. The use of a diverse range of perch options in the cage or play station is imperative to your birds' foot health. Perches do not have to be boring, they can double as toys and chew items too!