European green woodpecker
The grey-headed woodpecker is a somewhat less specialised ant hunter than the European green woodpecker. In its foraging strategy it is intermediate between many "Dendrocopos" species on the one hand, and the often ant-specific members of the genus "Picus". This reduced ant specialisation of the grey-headed woodpecker allows it to be sympatric with European green woodpeckers and even to breed at about 100 meters from them.