Hi guys I have 5 RIR hens, 3 are just under 2 yrs old and the other 2 are about a yr old. one of the older hens has become very aggressive lately, I firstly put it down to her seeing less of me during the winter because they are mainly in a large run during the winter and summer they are free in the garden more and come up to the house. I noticed a few month back that she started growing spurs, they arnt massive but the other girls don't have them. ive found her in the nest box on 3 occasions recently when ive gone to lock them in for bed and ive lifted her up to the roost. she started to peck at me a few months back but I thought she was just a bit cheeky, now she stands up straight, puffs out her feathers and bites really as hard as she can! she will sometimes run straight for me when I open the door of a morning too. its so sad because she is a lovely girl really and im worried that this could be a health issue rather than a temperament thing. the other girls are all still friendly and we don't have a rooster. any advice or suggestions will be greatfully received I suspect she has stopped laying or at least is no longer regular.