Bird Sudoku Level 85 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 85 Strategy
Medium Level 85 uses a 8x8 board with 21 perch cells, 7 blockers, and 8 habitats. Use the row and column counts first, then test each open diagonal flight line.
Bird Sudoku Level 85 Solution
Bird positions in the solution: R1C2, R1C5, R1C7, R2C7, R3C1, R6C3, R7C5, R7C6, R8C3.