Short-Billed or just Short-Changed?

I recently photographed a small group of feeding Dowitcher. As always, I was on the look-out for a Short-Billed, having never conclusively found one before. One of the birds stood out from the pack this time. It seemed lighter and smaller than the other Dowitchers. Of course, none of those things in themselves prove it's a Short-Billed, but if anyone can venture a guess from these grainy photos I'd appreciate it.

I'm not getting my hopes up, but you never know...