At this time of the year, I like to go by the canneries to see these birds. So for a week, every day I went there at lunch, just to check them out.
These guys are 90 inches with their wings spread out! That's the width of a motor home!
When they are next to you and suddenly fly off, the "swoosh" in your ear makes your circulation stop.
Here is an aggressive juvenile protecting its catch from even the more experienced white heads.
And here is a video of him eating his catch. I think he ate over 50% of that salmon by himself.
Hope it doesn't gross you out. But, this is life at the edge of the wilderness.
Specially in the winter, when you get a meal, it is worth defending.