Abnormal behaviour of birds in captivity



When housed under captive or commercial conditions, birds often show a range of abnormal behaviours. These are often self-injurious or harmful to other individuals, and include:


 * Feather pecking
 * Cannibalism
 * Vent pecking
 * Toe pecking
 * Feather plucking
 * Stereotypies
 * Polydipsia
 * Sham or "vacuum" dustbathing