Only 1st winter birds show the terminal band as far as I'm aware. Nonbreeding adults have clean tails:
http://farm6.staticflickr.com/5046/56...
http://www.kolkatabirds.com/gujarat/b...
http://www.galleryofbirds.com/Thailan...
As far as color goes, I'm not sure it would be a reliable field mark, given the feet are in the shadows.
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