Bonded Mask (Su)
Source: Adventurer's Guide, p. 121
Replaces: Nature Bond
A halcyon druid forms a powerful bond with a mask, which functions identically to a wizard’s bonded object except that it can be used to cast druid spells (including those gained from class abilities) instead of wizard spells. A bonded mask must be worn to have an effect, and it occupies the head slot. A halcyon druid can enhance her mask with abilities appropriate for a head slot item, and can designate an existing head slot item as her bonded mask (but only if it covers her face).
This ability replaces nature bond. Magaambya-Trained (Ex): A halcyon druid adds Diplomacy and all Knowledge skills to her list of class skills.
This ability replaces nature sense and alters the druid’s class skills.