This observation is for the bird on the left, with the white around the eye & the orange-yellow bill (Clark's grebe). (Bird on the right is western grebe). Paired with and same photo as observation https://www.inaturalist.org/observations/37502784. Arrowhead Marsh & New Marsh, Martin Luther King Jr. Regional Shoreline EBRPD. Golden Gate Audubon field trip. King Tide at 11:45am.