adjectives used of the radar data: "inaccurate", "undisclosed".
adjectives used of the flight path: "erratic", "uneven", "zigzagging".
waypoints are thick as thieves, the odds of a flock of birds not hitting three of them are small.
...plus hitting exactly those waypoints makes no sense: the middle zig should have been skipped as superfluous.
Really? On a plane? On my boat they're typically within a few meters.