Group decisions and individual differences: route fidelity predicts flight leadership in homing pigeons (Columba livia). by Freeman, R, Mann, R, Guilford, T, Biro, D

“…Birds that are more faithful to their own route when homing alone are more likely to emerge as leaders when homing socially. …”

Consequences and mechanisms of leadership in pigeon flocks by Pettit, BG

“…I used GPS loggers to track pigeons homing alone and in flocks, and applied mathematical modelling to explore the mechanisms underlying group decisions. …”