Which term is often used to refer to a complaint about a troublesome animal?

The term "animal complaint" is commonly used in law enforcement and animal control contexts to refer specifically to issues involving troublesome or problematic animals. This may encompass a variety of situations, such as reports of stray animals, aggressive behavior, or noise disturbances caused by animals. It is a precise terminology that allows for clear communication about the nature of the issue at hand.

Using other terms like "live animal," "found property," or "lost property" does not accurately capture the specific focus on an animal causing a disturbance or concern. "Live animal" merely indicates the state of the animal without suggesting any issues or complaints. "Found property" pertains to items that have been discovered and are not related to animals, while "lost property" refers to items that have been misplaced. None of these terms align with the context of reporting a problem animal, which is why "animal complaint" is the correct choice.