This is no spotted woodpecker, but obviously one of the green species, which in Europe are in the genus Picus. The back is a grassy green and the tail looks similar. There is some pale spotting on the front edge of the wing. So, in a European context, this bird is either a Green Woodpecker or an Iberian Green Woodpecker or a Grey-headed Woodpecker. Identification is actually quite easy given views like this, as there is a complete absence of red on the crown. This immediately rules out Green and Iberian Green. It also rules out male Grey-headed, which has red on the forehead. This is a female Grey-headed Woodpecker. This is further confirmed by the grey head and neck, thin black moustachial stripe and mid-brown eye.
KEY FEATURES Green back and wings Grey head and neck Thin moustachial stripe Completely lacks red on crown