Bird Sudoku Level 128 Hint
Pick a row, column, or habitat with a low remaining count, then check which of its perch cells are blocked by open diagonal flight lines.
Bird Sudoku Level 128 Strategy
Hard Level 128 uses a 8x8 board with 27 perch cells, 6 blockers, and 8 habitats. Use the row and column counts first, then test each open diagonal flight line.
Bird Sudoku Level 128 Solution
Bird positions in the solution: R1C2, R2C5, R2C6, R2C7, R4C1, R4C2, R5C5, R7C8, R8C2, R8C4.