Pet Bird — environmental enrichment & exercise (toys, foraging, hiding, exercise, preventing boredom)
Source: first-hand owner-practical care page, saved to source_file; every claim below is a C1 byte-substring of it.
Claims
If they're not stimulated enough, they can develop behavior problems like biting, screaming, or pulling out their feathers.You can also hide small pieces of food around the cage for them to find.Just like people, birds need exercise to stay healthy.Make sure your bird can move around in its cage, and provide perches and toys to keep it active.Avoid mirror toys that might confuse birds and stress them out.To keep your bird entertained, you can play music or leave a TV on nearby.Do Pet Birds Need Exercise? Just like people, birds need exercise to stay healthy.Birds should be let out of their cages to exercise, but make sure they're safe and supervised during this time.
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Source: pdf-raw/companion-care/exotic_merck_bird.txt · https://www.merckvetmanual.com/bird-owners/choosing-and-taking-care-of-a-pet-bird