When your life is totally dependent upon your feathers, time is well spent preening, cleaning & fluffing.
Having done some brief research, Bald Eagles have 7,000 feathers or more. Of course, they do molt and they molt in patches, taking approximately half a year to replace lost feathers.
And the feathers certainly were flying as this adult eagle did a complete body clean & preen, removing any old feathers (Photo #2 & Photo #3) and smoothing all those that remain.
This eagle must have eaten well early in the morning as the entire process took the best part of three and a half hours before heading down river mid-afternoon, with feathers all in good working order.
PHOTO #1
PHOTO #2
PHOTO #3
PHOTO #4
PHOTO #5
PHOTO #6
PHOTO #7