|Black-bellied Plover. Mission Bay, California. February 16, 2015. Greg Gillson.|
Back in September I photographed a Black-bellied Plover at the San Luis Rey River mouth. The black belly will start forming in April and May on the northward migration to the Arctic breeding grounds. Still there are a few black centered breeding plumage feathers on the back and scapulars of these birds poking through the browner non-breeding plumage of winter.