Least Tern

We pulled up to the beach at Sand Hollow that the gulls often frequent and saw a group of shorebirds, gulls, and terns. The wind was howling from the south. We got out and noticed some small birds next to 4 Forster type terns and I initially thought they were possibly Sanderling as they felt the right size and were white in appearance from 50 yards. Claire had 10 x bins and said that she didn't think they were shorebirds, but could see the white forehead of a Least Tern. We grabbed Natalies spotting scope and looked at the birds and were delighted to see two breeding adult Least Terns. We could see their white foreheads, and yellow bills. The birds had black caps on them, with a black eye line. The leg color wasn't noted as they were in the sand. The chest and the stomach of the bird was white. The mantle of the bird was gray. As we went to take photos, one bird picked up to start to fly. We were able to photograph it as it flew and noted the pale underwing, the white forehead again. However while in flight we did not notice the dark primaries at a distance.
(see photos)