Tree or Meadow Pipit

There has been  an increase in these pipits on and around the golf course last day or two  and I have a couple of queries:

(a)  Are they migrants or just moved down to the coast to escape the worst of the snow and winds recently?

(b) Looking in my RSPB book, colouring could suggest tree pipit but the fact that they are feeding in relatively close proximity to each other maybe suggests Meadow pipits??