I have tried but.....but it's not in SIBLEY! Guaranteed! :-D

Let's see if my guess is as good as yours.
Saw this bird at Hornsby Bend when i arrived there. The morning ray just hit the ground. I slowly drove my car closer and shot from my car window. Didn't get the bg that i like though.

These are uncropped. Only resized and pp'ed. C/C welcome and appreciated. Hope you like them.

500mm, f8, 1/1000s, ISO400, EC 0

wow awsome shot!!! love the last one!!! truely awsome!!! nice one!

I'm probably way off the mark, but it looks a lot like a Thrasher to me. Maybe it's moulting, or a juvie? According to my copy of Stokes, there's a critter found in South Texas called a Long-billed Thrasher that looks similar. Are you in that part of the world?

Not being familiar with some of the birds in your area, I'll take a leap, and venture to say a leucistic Great-tailed Grackle with molting/damaged tail feathers. Look at the face paying close attention to the eye and bill. Also check the rather well-feathered legs. Long-billed thrasher is a good guess, but I think the bill is a bit different.

Fee I think it's Clarks nutcracker, and a nice shot of him too

Wow, Fee! Never seen anything like that. It looks like a crow, but the feathers are really mottled.

You've captured it well. Congrats on the find.

cant help with the ID, but interesting bird and great shots

Good focus on the bird Fee, cars are handy aren't they? quite a few shots of mine are from the car window, don't know the ID though.

Beautiful shots of the juvenile Great-tailed Grackle.

Excellent detail and exposure.

My only suggestion is to not center the subject in your frame. Using the rules of 1/3 you want to leave some space for the bird to move into. If the bird is facing right you want more room on the right and the same when he is facing left.

I'd also say I think it's an immature Great-tailed Grackle, the lines and markings starting to show in the motling and the eye are the give-away I would say. Fantastic shots as always though Fee. Detailed and sharp as ever mate, excellent stuff

Very nice series of captures Fee; I agree with the others, here is my shot of a full plumage Great tailed Grackle; if you disregard the colors the body shape and bill they certainly look alike.

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Excellent captures Fee.

Thanks for commenting and ID'ing Richard, Nancy, Bob, Wayne, Joe, Billginthekeys, Tony, Jim, Wayne, Dennis, Reyno.
My guess is as close as yours. I think Bob's guess is the most accurate . I sent the photos to a bird expert who has 30 yrs of birding experience (and he happens to be my colleague ). He said the bird seemed like a partially albino or leucistic Great-tailed Grackle.

Excellent shots as always Fee. Super sharp with good details. Brilliant work.

Great light, very sharp and pose! - Bob