Hasan

This is definitely a chimney swift. A great study bird as well because the bulging inner primaries (the main field mark vs Vaux's) are super obvious here

It's Traill's. The photo is far from conclusive

Large eye, flat-backed appearance, and lack of eyebrow rule out White-rumped, IMO

It does indeed look like Baird's

Most are red necked, some are wilsons

Varied Bunting

I mean it's not identifiable but my guess would be Red-necked, at least from what we can see

Black-bellied

1.Western 2. Pec 3. Least, I think 4. Lesser Yellowlegs 5. Yes

This is definitely a Pectoral Sandpiper

I can't eliminate Acadian

Sanderling

I'm having trouble getting a good sense of the bird. Any other angles? I don't see why it's not a Wood-Pewee

Because the throat and body is rather contrasty, the plumage isn't very green overall, the primary projection isn't super long, and the bill + structure suggests something smaller and daintier.

I imagine this is almost definitely a Least, but the bulky bill and longer primary projection is a bit interesting