Average angular velocities of a representative individual (Dove 46) during landing on different substrates (N = 10 trials per substrate).

<p>Average timing (solid line) +/- standard deviation (dashed lines) is noted for foot extension (green), landing (gray), and the point the bird is considered stable (purple), following body reorientation. Instabilities are notable in following landing on the compliant substrates (aluminum and wood), indicated by additional angular velocities.