Assessment | Biopsychology | Comparative | Cognitive | Developmental | Language | Individual differences | Personality | Philosophy | Social |
Methods | Statistics | Clinical | Educational | Industrial | Professional items | World psychology |

Animal ethology Comparative psychology Animal models · Zoology

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

See also Edit

• Animal captivity
• Animal psychopathology
• Battery cages
• Furnished cages
• Chicken
• Comparative psychology
• Stereotypy