Western Snowy Plover, Charadrius alexandrinus nivosus is correct. (Note: Wikipedia isn't completely reconciled on this ID) "UPDATE: subspecies split, accepted 28 April 2009 by the American Ornithologists' Union, Snowy Plover, American subspecies, is now split off as "Charadrius nivosus" from the previous Kentish Plover Charadrius alexandrinus, the Eurasian subspecies, per official acceptance of the split here: www.worldbirdnames.org/n-shorebirds.html see also www.bath.ac.uk/bio-sci/biodiversity-lab/publications/kupp... " add tags "taxonomy:binomial=Charadrius nivosus" , “Charadrius nivosus"
Western Snowy Plover birds on Morro Strand State Beach, opposite the Cloisters City Park or the Morro Bay, CA High School, 23 April 2010. Yesterday 4/22/10 I took hundreds of photos but not one capture had a decent catchlight in the plover’s eyes... so today I went back with a flash, a better camera body, and a longer 600mm lens. Photo by Michael "Mike" L. Baird, mike [at} mikebaird d o t com, flickr.bairdphotos.com; Canon 1D Mark III, Canon 600mm f/4.0 Lens, and for most shots in this set I used a Canon EF 1.4X II Extender Telephoto Accessory, and, for a closer minimum focusing distance, a Canon EF 12 II Extension Tube For EOS Digital Cameras, with no Circular Polarizer, on Gitzo GZGT5540LS tripod with Wimberley Gimbal Head II, and a Canon Speedlite 580EX II Flash for Canon EOS Digital SLR Cameras mounted on an extension arm 6 inches above and forward of the camera’s hot shoe . To use this photo, which has the most liberal Creative Commons Attribution license possible attached, please see the access, attribution, and commenting guidelines at www.flickr.com/people/mikebaird/#credit
(466 images taken (9 keepers) between 3:04PM and 6:20PM; earlier images were taken near an exclosure opposite the Cloisters City Park; later photos were taken opposite the Morro Bay High School at the same location as the day before (20 meters west of the subject is GPS coordinate 35.38250000,-120.86466667). 13 April 2011 Sciadopitys Sciadopitys said:“Now split as Charadrius nivosus”
Thanks very much for bring this taxonomic scientific split to my attention and tagging my multiple samples! What a great Flickrite you are!