Quick answer: “Birds of a Feather” means like-minded people who naturally group together.
Birds of a feather — people who share similar interests, backgrounds, or characters and naturally associate with one another. From the proverb: birds of a feather flock together.
Origin & History
The proverb dates to at least the 16th century in English. William Turner recorded a version in 1545, and it appeared in John Minsheu's 1599 dictionary of proverbs. The observation comes from nature: birds of the same species do literally fly and roost together for safety and social reasons. The metaphor transferred easily to human society, where people of similar character, wealth, or background tended to socialise with one another.
By the 18th and 19th centuries the proverb was deeply embedded in English literature and everyday speech. Today the shortened form "birds of a feather" is used as a standalone noun phrase to describe people with shared traits, and the full proverb "birds of a feather flock together" is quoted as a cultural truism about human social behaviour. Learners who want to check other figurative expressions can consult general reference works such as the Cambridge Dictionary, which document how such idioms are used today.
Example Sentences
| Sentence | Context / Register |
|---|---|
| Those two have been inseparable since university — birds of a feather, really. | Informal / friendship |
| The whole team are birds of a feather: all passionate about data and design. | Workplace / neutral |
| It's no surprise they fell out — they're birds of a feather with the same stubborn streak. | Relationship / informal |
| Birds of a feather flock together, so join communities where your values are shared. | Advice / neutral |
| The investors and the founders were birds of a feather — risk-takers all of them. | Business / neutral |
| As the saying goes, birds of a feather flock together, and these two are proof of it. | Proverb use / neutral |
Use It in Conversation
Dialogue Example
Nina: I can't believe how well Jake and Amir get on. They only met last month.
Tom: Birds of a feather — they're both obsessed with vintage motorcycles. They were bound to hit it off.
Nina: Ha, that makes perfect sense. They probably spoke about carburettors all evening.
How to Use It
Use "birds of a feather" to describe people who share strong common traits, interests, or values. It can be used affectionately or critically, depending on context. The phrase often follows the verb "to be" and can refer to two people or a whole group. The full proverb "flock together" is commonly added for emphasis or in more formal writing.
Common Mistakes
Mistakes to Avoid
They are bird of a feather.
They are birds of a feather. — Always plural: "birds", not "bird".
Birds of the same feather flock together.
Birds of a feather flock together. — The fixed form uses "a feather", not "the same feather".
Similar Idioms
Practise This Idiom
Want to understand the grammar behind this? Explore our Grammar guides.
Quick Check: Birds of a Feather
2 questions — test what you just learned.
1. What does “Birds of a Feather” mean?
2. Complete the sentence: “Those two have been inseparable since university — _____, really.”
Frequently Asked Questions
What does "birds of a feather" mean?
"Birds of a feather" refers to people who share similar interests, backgrounds, or characters. The full proverb is "birds of a feather flock together", meaning like-minded people naturally associate with one another.
Where does "birds of a feather" come from?
The proverb dates back to at least the 16th century. William Turner recorded a version in 1545 and it appeared in John Minsheu's 1599 dictionary. It draws on the observation that birds of the same species naturally congregate.
Can you give an example of "birds of a feather" in a sentence?
Example: "Those two have been inseparable since university — birds of a feather, really." It suggests that their similar personalities naturally drew them together.
Is "birds of a feather" formal or informal?
It is neutral to informal. It is commonly used in everyday conversation, but can also appear in essays and journalism when commenting on social groupings or behaviour.
What CEFR level is "birds of a feather"?
This idiom is typically introduced at B1 (Intermediate) level. It is one of the most widely recognised English proverbs and its meaning is usually clear from context.
What are common mistakes with "birds of a feather"?
A common error is saying "bird of a feather" (singular) — the phrase is always plural: "birds of a feather". The full form "flock together" is often dropped in casual speech, which is acceptable.
What idioms are similar to "birds of a feather"?
Similar expressions include "like-minded" (sharing the same views), "cut from the same cloth" (very similar in character), and "in the same boat" (sharing the same situation).
How do I practise idioms like "birds of a feather"?
Try LexFizz's Flip Tiles and Flash Cards. Write sentences describing pairs of friends or colleagues who share a passion, using the idiom naturally.
Can "birds of a feather" be used to describe negative similarities?
Yes, the phrase can be used positively or negatively. For example: "Those two are always in trouble — birds of a feather." Context and tone determine whether the similarity is admired or criticised.
Is "birds of a feather" used in British and American English?
Yes, the idiom is equally common in both British and American English. It is one of the most internationally recognised English proverbs.