Last evening, two birds in birch tree. Black plumage, size of pileated woodpecker, wedge tail, woodpecker type beak, red patch on rump. Closest bird I can find that resembles them is a Black Woodpecker (except the Black Woodpecker has a red patch on head) and apparently found in Europe. I have checked all my bird books, on line, even A.I. but no luck.