No person may treat any animal, whether belonging to the person or another, in a cruel manner. This section does not prohibit normal and accepted veterinary practices.
Wis. Stat. § 951.02
Conviction under this section does not require proof of intent or negligence. State v. Stanfield, 105 Wis. 2d 553, 314 N.W.2d 339 (1982). "Animal" in this section includes non-captive wild animals, such as the deer in this case. State v. Kuenzi, 2011 WI App 30, 332 Wis. 2d 297, 796 N.W.2d 222, 09-1827.