Green woodpeckers have lived in the oak trees at the bottom of the garden for at least 40 years. They don't often come into the garden, but at a certain time of the year they like pecking at the lawn - I think it's an ants nest. We can see where there's a pecked bit of lawn after he's gone, and we often hear him. He can't always see us watching him, because we have a conservatory which has some of this special heat reflective glass, which acts as a mirror in certain light. (They never mentioned that in the advertising leaflet!) Next time he's around, I'll try and catch him on camera. We also have a family of blue tits live in the garden, they are so used to my DIL that she can walk only a few feet away from her and they don't fly away.