What does a "thud" sound indicate when an arrow strikes an animal?

A "thud" sound when an arrow strikes an animal typically indicates a solid chest hit. This sound often suggests that the arrow has penetrated the animal's body effectively, making contact with vital organs such as the lungs or heart. A well-placed shot that results in this sound usually offers the best chance of a quick and humane kill, as targeting the upper body cavity can lead to significant blood loss and rapid incapacitation of the animal. Recognizing this sound helps hunters assess the effectiveness of their shot and determine how to proceed with tracking the animal.

Other options may involve different sounds or signs associated with the type and impact of the shot but do not convey the same level of assurance about the quality of the hit as the "thud" sound indicating a solid chest hit.