Of the two Aechmophorus Grebe‘s, Clark‘s is said to be slightly more common inland on freshwater bodies. In the Salton Sea, it is found more commonly than Western Grebe.
Field marks to note are yellow-orange bill and black cap that does not extend to and surround the eye. Salton Sea NWR. Southern California, USA. August-2007. Canon 10D Digital SLR and 100-400mm IS USM Lens. ISO 400.
In flight, Clark‘s show more white in the wing. Salton Sea NWR. Southern California, USA. August-2007. Canon 10D Digital SLR and 100-400mm IS USM Lens. ISO 400.
Salton Sea NWR. Southern California, USA. August-2007. Canon 10D Digital SLR and 100-400mm IS USM Lens. ISO 400.
The hind neck of the Clark‘s shows a narrow black stripe. Compare to photos of Western Grebe. Salton Sea NWR. Southern California, USA. August-2007. Canon 10D Digital SLR and 100-400mm IS USM Lens. ISO 400.