Feline Aggression: Welfare and Behaviour Management
Types of Feline Aggression
Feline aggression has multiple forms: inter-cat aggression (territorial or hierarchical conflict between cats in the same household or neighbourhood); play aggression (redirected hunting behaviour, particularly in young cats); fear/defensive aggression (triggered by perceived threat); pain-induced aggression (response to painful handling); petting-induced aggression (triggered by overstimulation during handling); predatory aggression (towards small animals); redirected aggression (displaced from an unattainable target); and idiopathic aggression (no identifiable cause).
Welfare Impact
Feline aggression causes welfare harm at multiple levels: injured cats experience physical pain from bite and scratch wounds (often becoming abscessed); living in a state of fear or conflict causes chronic psychological stress; cats experiencing inter-cat aggression in multi-cat households may be unable to access essential resources (food, water, litter trays, resting areas); and owners experiencing aggression may make rehoming decisions, creating additional welfare compromise.
Assessment and Diagnosis
A thorough behavioural history is the foundation of assessment: onset, triggers, targets, body language during aggression, environmental context, and outcome of aggressive incidents. Physical examination rules out pain-related aggression. Referral to a board-certified clinical animal behaviourist or veterinary behaviourist is appropriate for serious or refractory aggression cases. Functional analysis (identifying antecedents, behaviour, and consequences) guides behaviour modification planning.
Management Approaches
Environmental management for inter-cat aggression: increasing resources (multiple feeding stations, water points, litter trays, resting areas); creating vertical space; establishing core territories for each cat (with separate resource areas); and managing visual access (opaque screens, separate rooms) during periods of tension. Pheromone therapy (Feliway Multicat) may reduce inter-cat tension. Behaviour modification (systematic desensitisation and counter-conditioning) addresses specific triggers. Medication (SSRIs, benzodiazepines) for anxiety-based aggression.
When Rehoming Is Appropriate
Some inter-cat conflicts cannot be resolved and require rehoming of one cat for the welfare of all involved. Indicators that rehoming may be the most welfare-positive outcome: chronic fear and hiding in one cat; failure of intensive management and behaviour modification; ongoing physical injury despite management; and severe impact on human welfare. This decision should be made with veterinary and behaviourist input, compassion, and acknowledgement that rehoming can be a welfare-positive outcome rather than a failure.