I believe this is a Lesser Sand-Plover in non-breeding plumage but wanted to double check, but maybe it's a Greater. Hard to tell the bill size with such blurry photos (sorry, they were taken through my windshield!) Some pictures also have a Sanderling in them. Photos are all of the same individual. Taken just outside the town of al-Khaluf, near Bar al-Hikman and Masirah Island, Oman