Evidence for olfactory search in wandering albatross, Diomedea exulans

Circular histogram plots of approach bearing relative to wind direction for direct (A), turn/zigzag (B), circle (C), and water (D) approaches. Plots are normalized such that upwind is zero degrees for each graph. Turn and zigzag approaches were significantly oriented upwind whereas, water approaches [sit-and-wait approaches (28)] were significantly oriented downwind. Direct approaches were bimodally distributed, and circle approaches were uniformly distributed with respect to wind direction (see text).