Cockatiels are among the most popular pet birds worldwide, but their social, dietary, and flight needs are frequently undermet in typical household settings.
Cockatiel welfare suffers from the same underestimation of needs that affects other psittacines, but at a scale that affects millions of birds due to their popularity and accessibility. The most pervasive welfare problems are social isolation and dietary inadequacy. Cockatiels kept alone and fed exclusively seed develop chronic loneliness and nutritional deficiencies simultaneously — a combination that manifests as feather plucking, screaming, and aggression. Same-species companionship is strongly recommended; human interaction, while valuable, cannot substitute for conspecific bonding. Cage size must accommodate wing-stretching and some flight; barred cages that prevent natural movement are inadequate. Night frights — sudden waking in darkness causing panicked flying — are common in cockatiels and cause injury; a night light reduces this significantly.