Bird Sudoku Level 107 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 107 Strategy
Hard Level 107 uses a 9x9 board with 29 perch cells, 10 blockers, and 7 habitats. Use the row and column counts first, then test each open diagonal flight line.
Bird Sudoku Level 107 Solution
Bird positions in the solution: R1C8, R2C3, R3C3, R4C7, R4C8, R7C7, R8C5, R8C7, R8C9, R9C1, R9C7.