This is certainly a golden-plover. By mid-November Pacific Golden-Plover is the "expected" species along our coast (and especially out on the Channel Islands), but we're still in the window for late fall migrant American Golden-Plovers. From head patterning and relatively large bill, my impression is that your bird is a Pacific. A photo showing details of primary extension (beyond the tertials and beyond the tail) would be very helpful -- primary projection is longer in American than in Pacific. This mark s equivocal from your photo. Pacifics are also relatively longer legged, though I can't really make out any legs on your bird. A juvenile Black-bellied Plover would lack the yellowish tones on the head and would have a longer, thicker bill (and a hind toe [albeit very small], though your photos don't help there).
Kimball L. Garrett
Ornithology Collections Manager
Natural History Museum of Los Angeles County
900 Exposition Blvd.
Los Angeles, CA 90007 USA
From: <LACoBirds...> [<LACoBirds...>] on behalf of <kevin_lapp...> [LACoBirds] [<LACoBirds-noreply...>]
Sent: Saturday, November 11, 2017 6:49 PM
Subject: [LACoBirds] Plover ID Question
I stopped by the Snowy Plover enclosure at Dockweiler State Beach around 4pm this afternoon. In addition to the 52+ Snowy plovers hunkered down in plover-bunkers in the sand between the enclosure and the beach (nearly all were outside the enclosure), there was a single larger plover present. The coloring was very yellow/golden, and it was not because of afternoon light. It was either a juvenile Black-bellied Plover or, possibly, a golden plover. I never saw the bird in flight or spread its wings.
Golden plovers are above my birding pay grade. Can anyone educate me on what field marks help make out the ID here?