  We simulate the Vicsek model utilising topological neighbour interactions and
estimate information theoretic quantities as a function of noise, the
variability in the extent to which each animal aligns with its neighbours, and
the flock direction. We show that these quantities, mutual information and
global transfer entropy, are in fact dependent on observation time, and in
comparison to the canonical Vicsek model which utilises range-based
interactions, the topological variant converges to the long-term limiting
behaviour with smaller observation windows. Finally, we show that in contrast
to the metric model, which exhibits maximal information flow for the ordered
regime, the topological model maintains this maximal information flow beyond
the phase transition and into the disordered regime.
