Basic plumage. Notoriously difficult to separate from Short-billed Dowitcher (Limnodromus griseus) though this is normally only seen along the coasts of Mexico, thus 'should not' be seen here in Ags. Indications that these are LD are the general dark gray color and the black tail bands that are broader than the white ones.
Basic to beginning alternate. Single bird at fresh water pond only 300 meters from the ocean. Round back, barred flanks and blunt white tipped new coverts indicate this species.
Adult birds in transition to basic. The dark and curved backs with apex near the center are good indications of this species. The flock , about 100 birds, were foraging the same way, and some birds heard too. A large flock at an inland locality, despite warnings about using locality as a mean to id dowitchers, still useful to support the identification of these birds as Long-billed.