On June 25th, at Hayward Regional Shoreline in Hayward, CA, in a pond in the marshes just north of Winton Ave entrance, there was a mixed flock of non-migrating Marbled Godwits and Willets, plus a couple Avocets and Black necked Stilts. I had seen about 20 Red necked Phalaropes in this pond a few days before, so I'm pretty sure the small white with red neck birds in this group are them. There are also some cinnamon colored small plump birds mixed in. Red Phalarope? Red Knot? other? Sorry photo is not great. The Red necked Phalaropes where right near the path when I was on my bike, with no camera. Of course, when I returned with 400mm lens a few days later, the raft of birds was quite far out. Hopefully you can zoom on this image, or I can add a cropped version...
It was a very high tide, and very windy - conditions in which you can sometimes find exotics along this shoreline.
Thanks in advance for any input!