Help with identification please

Hi,  Can anyone identify this bird that's been coming to my garden recently please?  It's bigger than a chaffinch and house sparrow and walks, not hops.  It's too big for a meadow pipit I thought and looks much stockier than a pipit but I'm probably wrong.  It's very striking really and stands out from the other birds poking about under the bird feeders.  I live in the Outer Hebrides and we get all sorts coming through.  It is on its own and there doesn't appear to be a male/female counterpart.  Many thanks.