הזיהויים של samsimpro

I know these are really tough pictures so any advice is appreciated! Decent sized flock of birds that flushed out of a grassy area near the beach. I'm wondering about Snow Bunting potentially? It was my first impression in the field, and I noticed that the dark tips of the wings on some birds and paler on others could be a difference between males and females. I could be completely off the mark though