Hi Rob,
Thanks for sharing these nice images from Yellowstone! I (we) still need some time to process the images from our Bavarian Forest workshop, but you can expect some soon, hopefully

.
As always, I will give some feedback (note: I merged your two posts so I can comment in one go)
Coyote: I quite like this one, especially the look in his eyes. I'd brighten it a tad bit, but that would be all, I think.
Of these 7, this is definitely my favourite!
Bison: Lovely snow/ice covered coat. Just a shame he is looking away from us. Also given the general composition, I think I would have liked a little more room around (especially on the right).
Deer: This one doesn't really work for me; I don't really like the stance of the animal, and compositionally he is smack in the middle too (a crop would definitely help here). It's a bit on the warm side too (evening light?), but that is taste (and can be fixed easily).
Bobcat: The Bobcat is a different species from the Lynx you find in Bavaria, but similarly beautiful

. I like the image, to improve it (in my opinion), I would crop some off the right to have more relative space in front of the animal. Oh, and if we're nitpicking, I would have liked a different stance for his hind leg; it kinda looks funny, hanging in the air, right now.
Eagle: Nice environmental shot, great looking dead tree! Ideally the eagle should look “outside”, but one can't have everything

Post processing wise, I'd alter the white balance a bit as it looks a bit too blue-ish/magenta-ish now. Also, perhaps crop a bit to lose the bottom branches.
Red fox: Beautiful animal!
Bobcat2: Ha, this setting with the fallen trees looks very much like the setting in Bavaria! Nice

I'd crop it a bit to get more attention on the animal.
I reckon you shot all these with your D810 coupled with your 300/2.8 (perhaps with a TC)? This set gives you tremendous flexibility (you can crop a lot with still great quality), without weighing too much, especially compared to my D4 with a 600mm (which I'd need to get similar results I guess).
Thanks again for sharing these definitely cool images

!
Cheers,
Hayo