14. seconds passed and one or two were actually passing low over my head. The trend increased until quite a number were conduct- ing themselves in this way. I realised that I had once before met a similar experience on a minor scale when entering the isolated churchyard of a now disused parish church skirting the Essex marsh. That day I was immediately greeted by the determined headswoops of a pair of Swallows whose domestic activities at the nest were clearly seen by the birds to be at risk. I was not welcome. Weaving hirundi- nidae normally appear to be wholly absorbed in their own food-seeding gyrations, yet now as I stood by with binoculars levelled I was a disturbing element to their concentration and privacy. Objections were being raised, and a protest had to be made. Some of the more edgy characters were doing the right thing, without delegation or prompting. I was duly buzzed. Participation took an unexpected turn. The birds and myself were inter-involved. They were really aware of my presence, and of my silent aggression. If I could not behave, it was time for me to go . I looked at my watch -17.47. It was two minutes past my deadline anyway, and the end of the most hectic little spell of nature observation that I could remember. Eric Hooper ---oOo--- Recording. Ron Allen would like to thank all those who responded to his appeal for help with biological recording.