Brrr, bit chilly up there I imagine. It’s a hawthorn. You don’t often see lone blackthorns like that and they’re already flowering on lower ground. They tend to appear in suckering thickets rather than as trunked trees. That particular tree seems to be a bit of a star. https://www.cornwalls.co.uk/photos/cheesewring-hawthorn-1679.htm

Thanks, floral.

Yes, they are flowering a bit lower down. Actually it was a really nice day (St Piran's Day. Thank you sir).

Yep. That's it. A VERY tough, hardy specimen.

A bit windy at that location.....

Certainly is. There’s nothing higher than those moors until you get to Canada.