In ultimate custom night withered chica can say ,,I was the first, I have seen everything''. I think it means that chica was built the first of classic animatronics(freddy,bonnie,chica,foxy). But I am not sure because in the sliver eyes it's told that chica wasn't the first. ,,I have seen everything". I think that it means that chica have seen henry, his daughter and all henry's robots, all restaurants and maybe the bite of '83, '87.

What do you think about my theory?