Antonym of HAWK

Hawk : a person who advocates an aggressive or warlike policy, especially in foreign affairs.
Conciliation : the action of stopping someone being angry; placation.
Dove : a person who advocates peaceful or conciliatory policies, especially in foreign affairs.
Pacifist : a person who believes that war and violence are unjustifiable.
Pigeon : a gullible person, especially someone swindled in gambling or the victim of a confidence trick.

Antonym of Hawk is Dove