Characteristics of cat semi-owners.

Semi-owners of unowned 'stray' cats are a valuable potential target audience for human behaviour change interventions. Understanding that these semi-owners often have their own cats, might already be overwhelmed with cat-caring responsibilities and are disproportionately from lower socioeconomic backgrounds should guide intervention design. A nuanced approach is needed that prioritises the wellbeing of cats and semi-owners for semi-owners to 'buy in'. Any intervention should also recognise that semi-owners often face multiple, complex barriers to neutering or claiming ownership of the cats they care for, especially cost, and trust in the authorities.