Jurassic Coast or Jurassic Ghosts?

PGL Osmington Bay, Dorset, at dawn.

But what are the white streaks? Clouds? Con-trails? Chem-trails!? Jurassic Ghosts?
Actually, they're herring gulls blurred by the long exposure - so they really are Jurassic Ghosts (the very first birds appeared in the Jurassic period).

EOS 6D Peter Harriman 07 03 03 3040 JurassicGhost dpp