You are a master at using features of the forest to provide yourself cover.

Prerequisite: Favored Terrain (forest) class ability, Woodland Cover

Benefit: When fighting in a forest environment, you now have constant full cover against ranged attacks.

You also enjoy a +2 bonus to Reflex saves versus any ranged attack which provokes such a save. You may not benefit from this feat if you are helpless or flatfooted.