Every time you change the positions of the pigeons, their routes change/update on the map. You have to keep looking back and forth to figure out which path is the correct one before you send them off. There's a required number of birds needed per route (A-D) for each part to be collected and returned. It's tedious but there is a method to the madness. For those who don't want to go back and forth, here's the order... Pigeon hole quadrants; top: Q1, Q2 & Q3 bottom: Q4, Q5 & Q6 A. (3 birds needed for parts) Q1: Red Q2: X Q3: White Q4: Green Q5: X Q6: X B. (2 birds needed for parts) Q1: X Q2: X Q3: Red Q4: X Q5: X Q6: Green C. (1 bird needed for parts) Q1: X Q2: X Q3: X Q4: X Q5: White Q6: X D. (4 birds needed for parts) Q1: Purple Q2: Red Q3: X Q4: White Q5: Green Q6: X