Definitions of feathery:

• adjective:   adorned with feathers or plumes
• adjective:   characterized by a covering of feathers

  Example: "The feathery congregaton of jays"

• adjective:   suggestive of feathers in lightness

  Example: "Feathery snowflakes"

• adjective:   resembling a feather or feathers

  Example: "Feathery palm trees"