What is the difference between a bail bondsman and a bounty hunter?

A bail bondsman posts a bail bond to a court, which secures the release of a defendant during a judicial proceeding. This bail bond makes the bail bondsman financially responsible for the entire bail amount if the defendant fails to appear in court. If the defendant does in fact fail to appear as scheduled in court, the bounty hunter is the one that retreives the defendant on behalf of the bail bondsman.