Käyttäjän kenkwan0208 tunnistukset

Please help my ID this tern - I think there is some white on the forehead, so I thought little tern, but I am not sure, and there are similar species like common tern or whiskered tern

also the first 3 photos look a bit different than the other ones - I'm not sure if it's the same bird/species. There were 2 terns together, and I only photoed one, but it might've been a different one.