This is a male Chaffinch, Fringilla coelebs
The - female -
is mostly brown with white bars on the wings and has lighter coloured legs.
We see quite a few of these in the garden but they only rarely come close to the house, they're more often in a hedge searching for food - too far away and moving too quickly.
These birds are insect and seed eaters, their beak gives this away. It's strong to crush seeds, but also finely pointed to search out and pick up insects.
The picture was taken through the window, looking into the garden.