I am following this thread with interest as I have the same problem but worse. I have used Red Mite Powder & I brought some Red Stop Solution from Ireland. It said to put it in the drinking water for 9 days. It's been 4 weeks and whatever it is, is still there. I am also being bitten. (not...
If she enjoyed feeding your chickens and you put a stop to it that could be the reason that she no longer wants them around. The poor woman is looking after her two elderly parents who have dementia full time which would put a severe strain on any body. Perhaps she is falling to the same...
Welcome to BYC. This site is like a comfort blanket in times of stress and worry. You are surrounded by friends all willing to help with advice and consolation when required.
I would not take any action at all but I would call 101 - Local community Police - and get it on record that you have had what you believe to be a veiled threat. You are not in the wrong so don't put yourself there. Reporting this very strange action protects you and may be very useful later...