Re Steve's post below, we have lived in Orlandon Kilns now for 14 years (it is close to Mullock) and have only ever seen one Nuthatch here (and that was passing through), thus getting it on to the garden list! Even in the well-wooded areas around here they are hard to see until you head inland a bit.
During the Gann WEBS count this morning there were a few swallows flitting over the marsh at about 8:00 am, and we have since seen one over the garden.