I got good views of one of them and knew it was a Dunlin - that black belly is a bit of a give away. I assumed the second bird was also a dunlin, but inspection of the pictures I took show it to be a Sanderling.
One of the things that I find hard about identifying these waders in the UK is that I rarely get to see them in breeding plumage - by the time they arrive in Australia, there are in their non-breeding plumage, and generally looking less colourful.
So, here is a Sanderling (first two pictures) and a Dunlin (the rest).
When this post 'goes live' I will be deep in the Northern Territory - so I will be well and truely 'off the grid' as far as internet and such like. So, don't get impatient if you dont hear from me for a while.
Hope to be able to post some NT birds for next weeks WBW.
So, off you go, click the Blue Button and I'll see you when I get back! SM