homing pigeon

US /ˈhoʊmɪŋ ˌpɪdʒɪn/
UK /ˈhoʊmɪŋ ˌpɪdʒɪn/
"homing pigeon" picture
1.

信鸽

a pigeon trained to find its way home over long distances, used for carrying messages

:
The general sent a message by homing pigeon.
将军用信鸽发送了一条消息。
They used homing pigeons during the war to send secret communications.
他们在战争期间使用信鸽发送秘密通讯。