Pigeon noun – One who is easily deceived or cheated. Stoolie and pigeon are semantically related. in informant topic. In some cases you can use "Stoolie" instead a noun "Pigeon".
Stoolie noun – A person who provides information about another's wrongdoing. Pigeon and stoolie are semantically related. Sometimes you can use "Pigeon" instead a noun "Stoolie".