There was a FB report of one in East Huntspill garden back in November (but no pictures) & one below, changing into adult plumage, taken near Brent Knoll on Monday (but not seen again). All of 5 miles apart, although may not be the same bird. (Need to copy & paste whole link)

https://scontent.fbrs1-1.fna.fbcdn.net/v/t1.0-9/90300645_10213832616689631_2990357978973995008_n.jpg?_nc_cat=108&_nc_sid=07e735&_nc_ohc=9YaZEuvAkxcAX-oKKnF&_nc_ht=scontent.fbrs1-1.fna&oh=353e42cb5fe1cfdbf736c8d1bd259423&oe=5E97C526