I saw two raptors ahead on the beach. They took off, and flew over me. Large, with a most unusual wing pattern: white on the inside, black on the outside. Not just the flight feathers: a clean line in the middle of the wing. Stranger still, what they dining on appears to be another of the same species. Note the beak (head is bent under).

I have looked through hundreds of birds online and found nothing resembling these, which I would have guessed to be eagles.
Then this:


I’ve seen this DTOTB before — any idea what it is?













