---
title: "Flock"
url: "https://help.maxon.net/c4d/en-us/Content/html/OFPFLOCK.html"
section_path: "Simulate Menu > The Simulation System > Particle Modifiers > Flock"
element_id: "OFPFLOCK"
command_id: "1061637"
description: "Flock What is it about? This page documents the Flock modifier of the particle system in Cinema 4D. It adds swarm behavior — separation, alignment …"
---

# Flock

> **Note:** **What is it about?**
>
> This page documents the **Flock modifier** of the particle system in **Cinema 4D**. It adds swarm behavior — separation, alignment, cohesion — so particles move like flocks of birds or schools of fish instead of independent points.

If you think of flocks of birds or fish, you will discover certain mechanisms that prevent collisions between the individual animals, for example, and at the same time a uniformity of movement can be observed. This Modifier offers comparable functions to simulate ratios between the particles. The following video shows the effect that the Modifier has on particles. A certain order and structure is created in the particles.\
The Modifier has certain parallels to the *Predator Prey Modifier*, but it is better suited for simulating different behavior between two *particle groups*.

[Video: 2024-4_Particles_Modificators_Example_20.mp4](https://help.maxon.net/c4d/en-us/Content/Resources/Images/2024-4_Particles_Modificators_Example_20.mp4)