Males and females in eclipse plumage. The males retain the stronger body color and also shows a stronger white band behind the blue wing patch. Here with Least Sandpiper. and Lesser Yellowlegs.
Females. The rear bird looks more golden and with a longer bill giving associations toward Cinnamon. But as far as I recall the bird on photo 812 is the same as the front bird. Here the light is more chilly, which makes me believe that both birds most likely are Blue-winged.
Female type. Perhaps young birds. Difficult light but it is perceivable that they look strongly marked - contrary of what would be expected of Cinnamon Teals.