White Heron?

I think this is a white heron that just showed up today at the rookery. I took about 20 close-up pics of it and none of them turned out to be worth a &^$@#*%! It looks much to big to be an egret, and had very long thin feathers that blew everywhere in the wind. I'll try to get a better photo on Monday.
Cheers,
Ty

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I don't believe that there's "White Heron" extant in this counry. So, most likely, based upon that yellow bill, I'd say it's most likely a Great Egret, presumably just a great big Great Egret.

If you haven't yet bought a set of the new smaller Sibley Field Guide, $13.97 each through Amazon (and free shipping too), you might want to consider getting that, or at least the Western volume (which my Costco had on sale the other day for an unbelievable $11.99.)