Bird Sudoku Level 71 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 71 Strategy
Medium Level 71 uses a 7x7 board with 19 perch cells, 5 blockers, and 6 habitats. Use the row and column counts first, then test each open diagonal flight line.
Bird Sudoku Level 71 Solution
Bird positions in the solution: R1C6, R3C1, R3C2, R3C3, R4C5, R5C5, R6C2, R6C5.