Tripit? Mipit? Blipit!

Despite my recent excursion into Pipit identification, I still don't feel confident. I disturbed this one today as it was foraging for caterpillars and judging by its dishevelled appearance, it has little Pipit mouths to feed. I think it's a Tree Pipit, but I couldn't check out its song for obvious reasons. I also saw a pair of Golden Plover but sadly the light was against me for a decent shot of them.