Iowa’s deer population is not falling, so another type of hunting season is being added this fall to try and thin it out. Iowa Department of Natural Resources director Jeff Vonk says the size of the deer population is still a big problem.Vonk says the state will issue a large number of “antlerless” deer permits this fall to try to get the population under control. Vonk does not foresee the addition of any new seasons in the near future. Antlerless licenses go on sale Saturday and are available for bow, shotgun-two, and late muzzleloader seasons in all Iowa counties.