I've heard that peacocks are wanderers and have asked about the place and advertised, but no one seems to have missed her.
She looks funny out grazing with the other hens! She seems to be quite fond of our little bantam rooster too ... hmm. She has already gone broody and sat on some eggs for a few weeks - to no avail! They are large eggs about the size of large duck eggs.
cheers for now
thanks for all the comments - good to know there's someone out there!