Part of the black areas has a brownish tinge, and the bill is short and sharply upturned, so perhaps a young female? It's a subtle and tricky one. ^^;

The Pied Avocet was foraging close to a group of Black-winged Stilts. High tide had raised the water level, so the avocet's long legs were not visible.

The Marsh Sandpiper is transitioning from winter to summer plumage. The bird vaguely visible in the background is a Common Snipe.

Adult female Black-winged Stilt. Adults and juveniles were mixed together.