Your Dexterity score increases by 2, and either your Charisma score or Wisdom score increases by 1 (your choice).

 You have the ability to communicate in a limited manner with feathered beasts and monstrosities. They can understand the meaning of your words, though you have no special ability to understand them in return. You have advantage on all checks you make to influence them.

After successfully hitting with a melee attack, you can take the Disengage action as a bonus action.

Your light bones and feathered form reduce the impact of gravity; you take only half damage from falling.

 You can cast the polymorph spell on yourself with this trait, using Charisma as your spellcasting ability. When you use this version of polymorph. Once you cast the spell, you can’t cast it again with this trait until you finish a long rest.