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#1: Bushtit #2: Female Brewer's Blackbird.

Looks like a Say's Phoebe to me.

The hawk's a Coop. As far as the turtle, the only Pond Turtles I remember seeing in the area are Painted and Sliders. Edit: Okay, I left out Blandings, which this isn't, and according to iNat, people have reported Eastern Box, which this isn't, Common and False Map Turtles. Apparently River Cooters are found in the southernmost part of Illinois.

Golden Eagles will never look pale on the undersides, except for the base of the secondaries and tail in younger birds.

If you're looking for some of the western prairie birds, the Pawnee National Grassland is a good area for Burrowing Owl, Mountain Plover (both on Prairie-dog towns), Ferruginous and Swainson's Hawks, and Lark Buntings. There should be both Chestnut-collared and McCown's Longspurs, as well, but when I was out there last month I didn't have much luck with them. It's a ways north of I-76. For specific locations out there, I'd suggest checking e-bird, since my own experience is pretty much 20 years out of date.

Yes, that's a Whimbrel.

Blue Waxbill would be a true surprise, unless you've got an exotic bird shop nearby. Remember that young buntings, grosbeaks, and bluebirds won't look like their parents, at least in terms of color.

The paler primary coverts on the underwing fit Pomarine, actually.

The lack of rusty tones on the tail or flanks suggests Black-chinned.

I don't see any rufous in the tail feathers. Looks more like a Dusky-capped.

I'd say juvenile Spotted Towhee is right for the last one.