noun
carrier pigeon; homing pigeon (military)
Specifically a pigeon used for military communication; often refers to the historical use of homing pigeons in wartime.
軍用鳩は戦場で重要なメッセージを運んだ。
Carrier pigeons carried important messages on the battlefield.
伝書鳩 is a general term for homing or messenger pigeons, while 軍用鳩 specifically refers to those used for military purposes.
Compound of 軍用 (military use) and 鳩 (pigeon).