Thursday with Mostafa Hassanalian · One Time Only
Although many birds do not migrate, migratory birds perform either solo migration or fly in groups. For birds, flying together may be more efficient than solo flight. Flocking in migrating birds may offer a variety of advantages, such as greater area coverage, lower workloads, higher endurance, more resistance to predators, and less drag. Also, in flocking flight there may be a smaller probability of a bird losing its way during migration, considering the bird's age, experience, leadership, and social network traits.
Flocking is the complex, collective, flexible, coordinated, and self-organized behavior of a group of birds that migrate together. Formation flight may have aerodynamic advantages for large birds, such as geese. Drag reduction would be an advantage in migration. Flocking and formation flight are possibly effective drag reduction approaches.
Photo by Wayne Lea