Is this very common? My favorite little hen died a couple weeks ago. She seemed fine, happy and healthy, and then next time I walked by her cage, she was dead. There was an egg laid in her cage that looked totally normal and she layed on a regular basis. There was absolutely nothing out of the ordinary going on with her. It was weird.
It is not common BUT it seems to be one of the "faults" of the serama breed. I have had it happen once, it SUCKS! My UN-educated guesses on this is the fact that because the breed has been shrunk>> it brings with it some genetic oopsies.
Anyone want to chime in on this?