Michigan Compiled Laws, Chapter 324. Natural Resources and Environmental Protection § 324.42706

Sec. 42706. (1) All islands, enclosures, and pens used for propagation purposes shall be of a character and in a location that the department approves as satisfactory to keep in complete and continuous captivity the stock covered by the license, and shall be constructed in a manner to prevent the entrance of wild stock of the same species. However, pinioned or wing-clipped birds may be kept in unroofed enclosures.

(2) After July 1, 1986, the department shall not issue a license to a person, or approve an enclosure or pen capable of enclosing deer, unless the following conditions are met:

(3) Any deer that cannot be flushed from the land that is to be enclosed and is covered by a license issued under this part shall be purchased from the state as provided in section 42707.  1

(4) Subsections (2) and (3) do not apply to a person who has a valid license on July 1, 1986, unless the license holder expands the lands covered by the license.

(5) As used in this section, “flush” or “flushed” means to move or chase from the area that is to be enclosed.