Fallow Deer - A Medium Sized, Rangy Deer; Adult Males With Large Palmate Antlers. Bucks Develop Spike Antlers Beginning In Their First Year And Until 3-4 Years Old, Grow And Cast Only Antlers Comprised Of Beams And Simple Points. At 3-4 Years Of Age Males May Develop Antlers With Broad, Palmate Areas That Measure 8-25 Cm In Width; Total Length Of Antlers Is Up To 39 Cm. Photo