Friday, February 20, 2009

Advantages of acting in UNITY - pigeons flying as flock

This is excerpted from a scientific abstract on the difference in navigational ability and travel distance for pigeons flying individually and as a flock respectively - the results and implications are enlightening!

Flight data showed that the homing performance of the birds flying as a flock was significantly better than that of the birds released individually. When flying in a flock, pigeons showed no resting episodes, shorter homing times, higher speed, and almost no circling around the start zone in comparison to individual flights. Moreover, flock-flying pigeons took a nearly direct, "beeline" route to the loft, whereas individually flying birds preferred to follow roads and other longitudinal landmarks leading towards the loft, even when it caused a detour. Our results show that group cohesion facilitates a shift towards more efficient homing strategies: individuals prefer navigating by familiar landmarks, while flocks show a compass orientation.

https://www.zora.uzh.ch/7081/