Birds can often be seen navigating the skies in coordinated clusters. Even a relatively small congregation of 50 or so birds flying in time together can be a pretty spectacular sight. When one ...

Migratory birds in V-formations master aerodynamic principles, using air currents from leading birds to conserve energy.

When many migrating birds undertake their arduous flights, they'll often arrange themselves in a V shape, but what drives this distinctive behavior?

Mixed-species bird flocks are dynamic assemblages observed across a range of forest ecosystems, from tropical rainforests to temperate woodlands. These flocks, formed by a diversity of species, are ...

Greenberg, Russell S. 2001. "Birds of many feathers: the formation and structure of mixed species flocks of forest birds." In On the move: how and why animals travel in groups. Boinski, S. and Garber, ...