Sanderling (Calidris alba)

I joined causeway artist Dean Lewis for a walk along the Ogden Point Breakwater this morning and we were happy to spy these two little shorebirds having breakfast amongst the barnacles and limpets on the lower edges of the breakwater. I have identified these as Sanderling (Calidris alba) though I'm not 100% certain since there are many small sandpiper-like birds that are very similar. Any birders out there who can confirm or correct this identification are invited to make a comment. After we watched these birds a bit Dean and I took the hint and went and had breakfast ourselves at the nearby Ogden Point Cafe. Dean had the barnacles on toast and I satisfied myself with some fried kelp and a side of limpets.