pigeon
noun uk/ˈpɪdʒ.ən/ us/ˈpɪdʒ.ən/
[ C or U ]鸽子
a large, usually grey bird that is often seen in towns sitting on buildings in large groups, and is sometimes eaten as food
[ C ]（比赛用的）信鸽
a pigeon kept as a pet in order to take part in flying competitions
racing/homing pigeons 赛鸽／信鸽
Idiom
be not someone's pigeonidiom UK old-fashioned 不是（你）的责任
to not be someone's responsibility
Transport? That's not my pigeon - ask Danny. 运输？这不归我管——去问丹尼。