It is rutting season for deer this month. Hillwalkers and strollers in Glendalough Valley have been struck by the piercing sound of sika stags making a shrill triple-whistle sound as they collect their hinds (females) and hold them in a harem while they maintain dominance among their male counterparts during rutting season. A pregnant hind will give birth next June, 33 weeks after ‘unity-day’ in October!