Why Do Birds Flock Together?

Emergent synchrony is a universal feature of behavior.

Flock (birds) - Wikipedia

Why do flocks of birds swoop and swirl together in the sky? A biologist explains the science of murmurations

Birds of The Same Feather Flock Together

The Teamwork of Late Winter: Bird Flocks

How do flocking birds move in unison?

Modelling uncovers how birds flock together

Wild Birds Unlimited - Nature Shop

Marvellous murmurations: why do birds flock together?

Birds of a Feather Flock Together Meaning and Example

Why Do Birds Flock? - Safety.