My two year old (almost 3) Red Star died suddenly Thursday. I really don't know what happened and nothing seemed to be wrong. However, the past month or two I noticed that she wasn't acting quite like she used to; she was gentler when I hand fed her seeds, she would just stand in one place in the yard for a minute or two absolutely still, she wasn't as aggressive and dominant over my other chicken, and her attention span was much shorter than before. I also noticed that she had a bump on her leg for like 9 months - this bump did not seem to bother her, she was not in pain and was not limping or walking differently than before. I would like to know what was wrong with her and why she died so that I can try to prevent my other chicken from a sudden death.
and Welcome To BYC! Sorry about your hen. You might want to post about her in the Emergencies forum for help with figuring out what was wrong with her.