One bird had already molted almost completely into basic plumage, and the other was at the beginning, with a gray hood and mostly rufous body. Neither had obvious barring on the sides, or spotting on the necks The bird that had already molted did appear lighly barred on the side but what would seem in range for a LBDO. The coverts appeared to have nice wide edges clear on quiet a few feathers--not sure whether that is god for one or the other. As for shape the birds looke fairly falt backed when hunched over, but maybe not out of range for a LBDO? Here are some photos (about 5 mixed in with other stuff near the top):
when the birds flew they each gave a 3 note tu-tutulu call which when I heard it in the field sounded like a SBDO. After getting home and hearing it again, I think it may just be a really fast wik wikiki call for a LBDO. It doesn't sound as crisp as a SBDO, and more drawn out like a LBDO. In any event, I listened to it over an over and I am fairly confident it isn't a SBDO, to go along with the visual marks, but wanted some second thoughts. Usually when I see dowitchers, there are so many that the sound is a garbled mess so making out distinct call notes is kind of hard.