We have at least one alpine swift appearing to be staying for the summer, possibly a pair. One bird perched atop a dead tree briefly yesterday allowing a good sighting and a poor grainy iphone snap. There happened to be a group of goldfinches in the same tree so with those to compare I reckoned it to be blackbird size. First thought was ring ouzel but subsequently seen in flight it's unmistakeably of the swallow or swift family. Approaching later from distance (presumably) the same bird was in the same tree and this time I think there were two of them but couldn't be positive. We are just below the North Downs scarp north of Hythe, where I gather there were Alpine Swift sightings in March.