Wis. Stat. § 172.07

If any person, without the consent of the finder, takes any animal lawfully taken up from the finder’s possession, without the payment of the finder’s lawful charges incurred in relation to the animal, the person taking the animal shall be liable to the finder for the value of the animal. If the finder neglects to give the notices, procure the appraisals or perform any of the duties required of the finder, the finder shall be precluded from acquiring any right of property in the animal or receiving any charges or damages relative to the animal.