Very like Great Spotted Woodpecker: male black and white ‘pied’ woodpecker of same size and with only small red patch on hindcrown on male and all-black crown on female, also with large white shoulder patches and red vent. Close observation needed for safe distinction; note: no black line joining black central nape band with black angled stripe on neck-side (safest feature on adults); somewhat longer bill; pale nostril feathering (Great Spotted black); less white on outer tail-feathers. (only a few white spots at tip of black outer rectrices; Great Spotted has narrowly barred white tail-corners); on average cleaner white head-side and paler forehead (Great Spotted usually has dirty white cheek and brownish-white forehead, but occasionally identical); sometimes a few faint grey streaks on lower flanks and belly (never shown by post-juv. Great Spotted); on average less intensely red vent (but odd birds are similar); often slightly bigger red hindcrown patch on male than corresponding one on Great Spotted (but a few are the same). - Juvenile: Streaked flanks. Often reddish on breast.
Seen at Okcular , likely at other sites.
Reduced Chance (RC) May see it , bird may be transient at many of the sites, low in numbers and a little luck is required.