A chicken thief is someone who steals chickens for their own purposes. There are various synonyms for the word "chicken thief" depending on the context. Some common synonyms include poultry poacher, bird burglar, fowl felon, clucker crook, egg bandit, rooster raider, hen heist, and chicken rustler. Each of these terms describes someone who illegally takes chickens or poultry from their rightful owner. However, some of these terms can also be used colloquially to describe someone who is insignificant or unimportant. Regardless of the intended meaning, using synonyms for chicken thief can add variety and nuance to your language.