英國每年會有5-10萬隻水鳥因中鉛毒死亡，牠們大多是誤食了打獵活動遺留下來的鉛子彈而中毒。這問題早在一百年前已被發現，像丹麥已於1996年禁止使用這類子彈。
Around 5-10 million of wildfowl would die from lead poisoning each year in UK because they’ve mistaken lead bullets as food or grit. These bullets are left behind by hunting activities. this lead poisoning problem was first discovered a hundred years ago, and countries like Denmark has banned the use of lead bullet since 1996.

https://www.theguardian.com/environment/2019/jul/29/use-safe-alternative-to-toxic-lead-gunshot