This is a different bird to the Wildiaries one. Look at the relative lengths of the 3 outermost primaries; also the general plumage [very fresh here] and the undertail: the Wildiaries one shows moult with fresh undertail coverts growing out adjacent to the vent. I'm quite sure that Rob's bird is a fledgling and the Wildiaries one an adult in first stages of moult. Thus at least 3 NZSPs have been seen. No doubt there are others. Mike Imber
