The silver teal with the ducklings and the southern lapwing with its chick (left arrow) came near and there was a dispute between the adult silver teal and the adult souther lapwing

Shows the lamellae of the lower mandible

Male (right) and female (left). Differences are subtle and in guides male and female are not told apart. 

n field guides this species is treated like a monomorphic one since there are no noticeable characters which distinguish male from female. Anyway, female flanks are scale-like whereas the male's have an irregular barring. The rear third is finely barred in the male and wider in the female.

With the wing stripe characteristic of the species

Showing the speculum. The central stripe may be seen either blue or green according to the light. Here the two colours may be appreciated

Speculum white-green-white. The green line may be seen blue

The 12 ducklings in the photo