It doesn't take long to find the reason for the reason behind the adult chasing down every Crow and Turkey Vulture in the area.
Two chicks old enough to browse the shallows and feed on their own. They run back to the female to warm up under her wings when the late afternoon chill sets in.
Overhead threats safely averted, the male takes a break.
A Great Egret on its way out into the farthest reaches of the marsh.
Meanwhile, Ground Squirrels gather what I assume is nesting material, and scamper underground with their bounty.
An Anna's Hummingbird strikes a pose...
and then scratches an itch.
A Barn Swallow rests for a moment as the sun begins to set on the marsh.