Why Do Birds Flock Together?

Emergent synchrony is a universal feature of behavior.

Flock (birds) - Wikipedia

What can flocking blackbirds in the winter teach us?, UNC Charlotte Urban Institute

A biologist explains the science of murmurations - Big Think

Birds of a Feather Flock Together by David Lilly - The Canadian Nature Photographer

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

Yesterday evening around dusk I watched hundreds and hundreds of birds flying over my house. What were they?

Why Do Bird Flocks Move in Unison?

Do Birds of a Feather Flock Together?

Why do birds flock at sunset? Question finally answered by scientists, Nature, News

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

Why Do Birds Flock Together?, Birds of Chestermere