I'm almost sure that this is a MP because of the leg colour but I'd like to be positive as I saw it near the beach in an area that isn't usual for them. There was a couple of female wheatear in the same area if that helps.
Possibly a juvenile skylark? Slight crest developing there. white outer tail feathers. Very slight but not prominent pale stripe developing over eye...or am I looking too hard?
I can see how it could be either. I haven't found a website which discusses the differences between similar birds like a Skylark and a MP, especially when they are Juvenile.