Got this off the Wisc. DNR website, With all the velvet bucks being shot, I thought some people might not realize you have to get a special tag for them....
Note: Deer with antlers in velvet or in spotted coat may be harvested during the
open deer season, however, to keep the antlers or spotted hide the hunter must con-
tact a Warden within 7 days of tagging the deer and request written authorization.
The spotted hide and velvet antlers may not be sold or transferred to another per-
son. Albino and white deer may not be harvested without prior written authoriza-
tion from the DNR. Except albino and white deer may be harvested and possessed
in the CWD Management Zone. Upon harvest you must contact the DNR within
7 days of tagging the deer to obtain a Possession Authorization Receipt to retain
possession of the deer.