It caught Your attention right......use it to Your advantage when Coyote/Predator Hunting,take a small Feather and hang it from a tree branches then make a few Distress sounds,more than likely a Coyote or Bobcat will hear the sound and come in and see the movement of the Feather and You'll get a Predator.
Personally I think that the ever so slightly moving leave is balanced just perfectly or at the right angle/direction to be moving in the slightest amount of wind,yet it is intriguing and catches or attention to why only that 1 object is moving when all others it dead calm around it....use it to Your advantage when out Hunting!