Birds are highly intelligent and need regular mental stimulation to stay happy, since boredom is a leading cause of feather-plucking and other stress behaviors. Foraging toys that hide treats or pellets behind cardboard, paper, or puzzle compartments tap into a bird's natural instinct to work for food, rather than simply eating from a bowl.
Rotate toys every week or two rather than leaving the same ones out indefinitely โ novelty matters a lot to birds, and a 'new' toy can just be one that's been put away and reintroduced. Safe, bird-friendly branches for chewing and perching offer both enrichment and beak maintenance.
Training sessions using positive reinforcement (like target training or simple tricks) double as bonding time and mental exercise. And don't underestimate background stimulation: place the cage where your bird can see some household activity or, weather permitting, a window view of the outdoors โ most birds enjoy having something to watch.