Bloodhound Trail is a term used to describe the process of tracking an animal or person by SCENT. It involves using a bloodhound, which is a breed of dog known for its strong sense of smell, to follow a SCENT trail left by the animal or person. The trail is made up of five components: SCENT, ODOR, TRACK, NOSE, and SPOOR. SCENT is the smell that the bloodhound follows, while ODOR is the smell that the animal or person leaves behind. TRACK is the physical evidence of the animal or person's movements, such as footprints or broken twigs. NOSE is the bloodhound's sense of smell, which it uses to detect the SCENT and follow the trail. Finally, SPOOR is the animal or person's droppings, which can also be used to help the bloodhound follow the trail.