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Fig. 2 | Movement Ecology

Fig. 2

From: Goal-dependent current compensation and drift in surf scoter flocks

Fig. 2

a Heading H is approximated from image data by manually drawing a straight-line approximation (black line) over the body of individuals. In b, the angle between H/||H|| and (T - C)/||T - C|| is shown for the 10 individuals across 5 sample time-series for approach and return (black dots), with averages in red. Current direction vectors for each of the sample trials are plotted in blue, and are to relative scale in direction and magnitude

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