This report provides results from studies of Alphachloralosis poisoning in cats in three Nordic countries. A publication by Windahl et al. (2022) is the main scientific foundation to the report. The aim of this study was to investigate the possibility of secondary AC poisoning in cats from consuming poisoned mice, and to study metabolism and excretion of AC in cats. Findings in studies highlighted in the report showed that secondary poisoning of cats from ingestion of mice is possible and highlights the risk of AC poisoning to non-target species. Observations of wild mice revealed that they can consume significantly more AC-containing bait than earlier presumed.