Effect of Landscape Elements on the Symmetry and Variance of the Spatial Distribution of Individual Birds within Foraging Flocks of Geese. - Mads Bech-Hansen; Rune M. Kallehauge; Dan Bruhn; Johan H. Funder Castenschiold; Jonas Beltoft Gehrlein; Bjarke Laubek; Lasse F. Jensen; Cino Pertoldi (Symmetry, 2019)