研究發現，英國的家貓每年殺死多達 2.7 億隻野生動物。 該研究比較了城市和郊區的貓，並發現生活在自然區域附近的貓殺的動物數量較高，因為牠們的活動範圍更大。家貓通常會殺死鳥類和小型哺乳動物，牠們還有機會把傳染病帶給野生動物，構成威脅。

A study shows domestic cats in UK have killed up to 270 million wild animals each year.The study compared cats in urban and suburban areas, and discovered cats that living near natural areas killed more wildlife because they have large home ranges. Domestic cats usually killed birds and small mammals, and they can also bring diseases that can be transmitted to wild animals and threatened their survival.

https://www.earth.com/news/domestic-cats-kill-hundreds-of-millions-of-animals-each-year/