How do I clean stained white eagle feathers?

1. Fill the bucket or tub with warm water.
2. Add a small amount of Woolite and agitate the water to mix.
3. Swish the feathers around in the water. Do NOT scrub the feathers as this will damage them.
4. Rinse by swishing in clean water.
5. Reshape the feathers.
6. Dry with a blow dryer on a low setting.

thank you.

Here's a good article with steps: https://squattheplanet.com/threads/how-to-clean-found-feathers.18005/

I let them soak a few minutes in warm water with Dawn soap. Lightly pat them dry. Then use a hairdryer on low and don't keep it in one spot for very long. They'll begin to relax and they'll spread out again.

I would try warm water and a mild soap.

Wash with a mild soap like dish soap. Gently rub off any dirt by moving your fingers from the base toward the tip of the feather, like petting a cat, who likes its fur rubbed the right way. Rinse with clean water. Air dry or dry with a hair drier.