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mallyh I am told that rats will gang up on a single bird and torment it, a bit like a cat with a mouse. I have previously spotted a rat actually in the run. It had in come from neighbours wood pile. Put some baited poison down (covered to prevent anything else eating it) moved coup and run and thought all was well, sadly unfortunately not.
If there are no takers, I will donate her to our local farm animal sanctuary i.e. Red Gate farm for rehoming, don't want to give to somebody I don't know from adam.