That is actually standard WordPress functionality. It's an author archive page. It happens in the archive.php file. So if you want to display the author bio at the top you would need to modify that file and add in the author bio at the top if it's an author archive page. You'd need to use a conditional to check if it's an author archive, and you can see the conditionals being used currently to check for title near the top.
Ok thanks. I gonna try if I can make this happen.