A green covered rock near the Open Circle promontory this morning served as shared platform for a female Mallard and a Willet. The Mallard soon tucked her head in her wings and went back to sleep. The Willet seemed wide awake but also assumed the one-legged position. This promontory that juts out into the North Basin near the northern edge of the park has become a frequent stopover for the half dozen or so Mallards that seem at home here for the summer, plus the five American Coots who shelter here, and this Willet, and the occasional Cormorant.
Here’s a wider view of the scene: