Flamingos are highly social birds whose welfare in captivity depends on flock size, diet, and the opportunity to express natural behaviors.
Flamingos kept in small groups or pairs show clear welfare deficits from lack of appropriate social interaction. Their complex flock dynamics cannot develop in small captive collections. Dietary deficiencies cause color fading which may reflect metabolic stress. Wing-clipping to prevent flight prevents natural locomotion patterns. The best zoo flamingo colonies have large flock sizes, appropriate food, and naturalistic environments but many captive flamingos live in suboptimal conditions.