The great spotted woodpeckers are regular visitors to the garden; they can be spotted on the nut feeders or within the branches of the willow tree.  They can generally be heard before they are seen!  I knew there was a pair that visited the garden and in recent days thought there might also be young by the calls coming from the tree.  Today I finally saw them; one of the young landed on the fence and the parent landed to feed them.  The nuts are always topped up at the feeders so hopefully I will see them feeding again.