Looking at the houses in Christchurch Hill. The little daffodils have braved the snow and frost, and are now cheering up this small part of Hampstead Heath.
This tree, next to the path at the southern edge of the Viaduct Pond, is slowly coming into blossom. I think it is a cherry plum (Prunus cerasifera) - the blackthorn shrubs (Prunus spinosa) are not yet flowering.