Songbird's Call
Your voice calls a storm of songbirds that whirl around you and peck at your enemies. All creatures within the area of whirling birds become Concealed, and all creatures outside the area become concealed to creatures within it. A creature other than you that enters or ends its turn in the area takes 1d6 piercing damage as the birds peck at it.
Heightened (+2) The damage increases by 1d6.
Traits
An aura is an emanation that continually ebbs out from you, affecting creatures within a certain radius. Aura can also refer to the magical signature of an item.
This indicates abilities from the bard class.
An action with this trait requires a degree of mental concentration and discipline.
Focus spells are a special type of spell attained directly from a branch of study, from a deity, or from another specific source. You can learn focus spells only through special class features or feats, rather than choosing them from a spell list. Furthermore, you cast focus spells using a special pool of Focus Points—you can't prepare a focus spell in a spell slot or use your spell slots to cast focus spells; similarly, you can't spend your Focus Points to cast spells that aren't focus spells.