Watched several close to the shoreline of Stagecoach Reservoir. I'm calling these Western vice Clark's Grebes, but the differences seem very minimal.
If you have a large viewing display, click on 'original' size.
Nikon D800
,AF-S VR Nikkor 70-200mm f2.8G with TC-20 E II 1/800s f/6.3 at 400.0mm iso220
full exif