Hi Jane,
This is what Dick Newell says - I hope he doesn't mind being quoted on here
"I cannot reconcile its features with any candidate European pipit:
Meadow Pipit: nature and extent of breast and flank streaking.
Rock Pipit: Overal tone, white outer tail feather, pink legs, small bill, excessive pink in bill.
japonicus: just doesn’t look right when compared with other photos, neck patch not black enough, lack of orange on rear flanks, wrong shape.
rubescens: see Julian’s arguments below
Water Pipit: braces on back and too heavy streaking on back, wrong shape.
I can only guess that the pictures are some distortion of the truth, or it is an extremely aberrant version of some common form or it is a hybrid (I always dislike reaching for hybrid).
Dick Newell, Cambridge, UK"
As for the tail - your wish is my command!!