Fig. 4
From: Behavioural plasticity and the transition to order in jackdaw flocks
Self-propelled particle model captures the phase transition in mobbing jackdaw flocks. a A sample modelling result at low density. b A sample modelling result at high density. c Time variation of the instantaneous group order ϕt for the cases shown in (a, b). d Group order ϕ as a function of group size N at three different noise levels. e ϕ as a function of N−Nc. f Nc as a function of noise. Here, Nc denotes the critical group size for the ordering transition. For a, b the meanings of the coloured lines, black dots, and grey planes are the same as those shown Fig. 1
