Only the first of these four flags should be black:

Black flag: 🏴
England: 🏴󠁧󠁢󠁥󠁮󠁧󠁿
Scotland: 🏴󠁧󠁢󠁳󠁣󠁴󠁿
Wales: 🏴󠁧󠁢󠁷󠁬󠁳󠁿