What a beauty of birds, I once saw some like this close up in my country in several places near beaches, which is where they are more, it is their habitat, as they feed on fish that they themselves catch in the sea.
They are pelicans, they are also called buchones.
Yes you are right, these are the same birds, Pelicans, but I did not find any picture of Seagulls on the free site so I posted it symbolically. Thanks for reading and commenting.