Fig. 2
From: The challenges of estimating the distribution of flight heights from telemetry or altimetry data
Comparison between the standard deviation of the recorded flight height (y-axis) and of the corrected flight height (x-axis), assumed to represent the true flight height, in three species of large soaring raptors. Each point stands for one bird over its entire monitoring period. The state-space model that we used to correct the flight heights, and in particular its robustness to variation in sampling resolution across populations, is explained in Péron et al. [10]. The diagonal line shows where the points should be if the recorded flight heights were error-free