Does the Druid's Natural Fighting Feat work while in Elemental form or does it only apply to Wolf and Bear form?
Whoops. That's description is totally unclear! It should probably get an update. Thanks for pointing this out.
It only applies while in animal form: bear, dire bear, wolf, winter wolf. Elemental forms do not benefit from it.
Elemental forms function exactly like your normal form, except for the bonuses and penalties mentioned in the wildshape description. All feats apply how they normally do.