how many Great Grey Shrikes?

on Tuesday afternoon the Great Grey shown in the post first Great Grey Shrike was in the trees and hedges around Pyes Hall; first thing the following morning a Great Grey was nearer the car park, new bird?, and the assumed same bird around Pyes where it stayed all day -- easy to make assumptions though and when I looked at my images of the Pyes bird from wednesday it is clearly a new bird with very faint, hardly visible underpart vermiculations and a more obvious solid black loral stripe --
first two images the bird near the car park --remainder the outer ridge / Pyes bird