A perch is not a cage accessory; it is the surface your bird stands on for most of its waking and sleeping life. The wrong perch keeps the foot locked in a single grip all day, which leads to pressure sores, overgrown nails, and the painful condition known as bumblefoot. As a vet, the single change I recommend most often is swapping smooth plastic or single-diameter dowels for natural wood branches that vary in thickness and texture.

When choosing a perch, look for bird-safe untreated wood such as grape, apple, or manzanita, with the bark left on for grip. Match the diameter to your species so the toes wrap about three-quarters of the way around without overlapping, and offer several sizes so the foot flexes through different positions. A good multi-piece set gives you that variety in one purchase and lets you rotate perches for cleaning.