What’s a Flock of Birds Called? Understanding Bird Behavior

Oliwia Urban 


When it comes to groups of birds, have you ever wondered what they are called? From flamingos to swallows to eagles, different bird species have their own collective nouns. These unique and sometimes amusing terms, such as “raft,” “band,” “host,” “chime,” or even “kettle,” describe large groups of birds. While some of these names may seem obsolete or rarely used, they add character to the world of birding.

Understanding these distinctive terms and the behaviors associated with them enhances the birding experience. In this article, we will explore the concept of bird flocks, what constitutes a flock, and why birds exhibit this behavior.

What Is a Flock?

Not every gathering of birds can be considered a flock. Two main characteristics typically define a flock:


The number of birds in a group provides a clue as to whether it can be classified as a flock. Generally, a small gathering of two or three birds is not referred to as a flock. However, there is no specific minimum number required for a group to be considered a flock. Larger groups are almost always categorized as flocks, whereas smaller groups may also be flocks if the birds typically don’t gather in groups. For instance, gregarious birds like gulls, ducks, and starlings are commonly seen in large groups. Thus, just half a dozen of these birds together wouldn’t usually be identified as a flock. On the other hand, less social birds like hummingbirds or grosbeaks could be considered a flock even with just a few individuals since they are less prone to gather in large numbers.


Any sizable group of birds, regardless of the number of species within it, can be referred to as a flock using a general term. However, specific and specialized terms are typically reserved for single-species flocks. The exception occurs when all the species within the group belong to the same family. For example, a flock of sparrows can be called a knot, flutter, host, quarrel, or crew, even if it comprises multiple sparrow species. Conversely, a gathering of wading birds only qualifies as a flock if it consists of herons, godwits, egrets, flamingos, storks, and plovers, as each of these birds has its own collective noun.

The Fascination of Bird Flocking

Birds exhibit flocking behavior for a reason. Experts believe that forming organized groups enhances survival and safety. Flocking increases the chances of finding food and provides protection against threats and predators. In the case of birds flying in “V” formations, this behavior may conserve energy. By taking advantage of the aerodynamic effect of drafting off each other’s flapping wings, birds can make long journeys easier and less exhausting.

Some bird species, such as starlings, create acrobatic flocks capable of swiftly maneuvering to create intricate shapes and undulating patterns in the sky. This behavior serves as a deterrent to their natural predator, the fast and agile falcon. Other birds, like dunlins, synchronize subtle body tilts while in flight to camouflage their plumage and confuse potential predators.


Understanding the concept of bird flocks and the specific terms associated with them adds depth to the world of birding. Whether it’s observing a “murder” of crows, a “chattering” of starlings, or a “kettle” of vultures, each collective noun offers a glimpse into the unique characteristics and behaviors of different bird species. So, the next time you encounter a gathering of birds, you’ll have a better understanding of what to call them and why they flock together. Happy birding!