Peacock and exotic bird feathers for jewelry, accessories and table centerpieces: Do they have to kill the birds to get the feathers?

Peacock feather jewelry is popular, and in the stores I see headbands and other accessories made out of exotic bird feathers. A friend of mine told me she knows someone who was planning an elaborate, catered party and the tabletop centerpieces consisted of huge peacock feathers with lights.

When exotic bird feathers are used to craft jewelry, centerpieces and accessories, do they have to kill the birds to get the feathers?