CLOSED: Spotted Sandpiper? and Some Plover?

All in South Texas

The first two are a plover (I think?) in flight (upper left).
Next two are I think a spotted sandpiper.
Last one was near the spotted one, but it looks a little different to me.

1-2 Piping Plover

3-4 yep, Spotted Sandpipier

5 Solitary Sandpiper

Resin

Resin,

Thanks much! I guessed right on the Piping Plover, but then just wasn't sure. The white on the uppertail and light back made me think Piping, so I guess I am getting there slowly but surely.

Patti