Here is a quote from the DNR website: Q. Isn't there also a "button buck" tagging option for an antlerless deer hunter? YES. In addition to the above options for deer hunters, a person with a valid antlerless deer hunting license and an unused firearm or comination license that kills a "button buck" (male deer with less than 3" antlers) can tag the male deer with any deer hunting license (antlerless, firearm, or either combination license). Both licenses must be in your possession at the time of the kill. All deer must be tagged immediately. The way I read it, this rule is valid no matter what season you're in. In other words, rule stands even for early and late antlerless seasons. Can somebody confirm this for me?