Least Tern or Sterna antillarum
This parent did not locate its chick this time. If the chick was still there & alive I don't know. It broke my heart to watch this parent....
NIKON CORPORATION NIKON D300, f/8 @ 800 mm, 1/1250, ISO 640, No Flash
Lil Judd aka LilKnytt Photography (c)