Yep, those are both Least and Baird's Sandpipers in the second image, with a Baird's in the first.
I was at Robert Lake a few days ago and had a Sanderling - look out for that one there too. At the dump the same day I ironically also had 52 Baird's Sandpipers, and 3 Stilt Sandpipers in the far northern pond. I would definitely recommend checking out the landfill because there are indeed very close and photographable Stilt Sandpipers there.
Eat, Sleep, Bird!
~ Logan, 16 years old ~
Here is my photo page :
... I've been more active at @logan_lalonde_photography on Instagram lately