Ron writes:

"Here are some images of several close encounters in the Kearny Marsh on Sunday afternoon. 

"The Northern Harrier was a fly-by right off my bow and the plovers were photographed within an oar's reach of my lens.  The Black-bellied Plover was extremely cooperative. 

"The Keegan landfill held at least seven kestrels both hover-hunting and perched on the surrounding poles.

"Wading birds abounded, including several Green Herons."

Plover pix follow. (Thanks, Ron!)