English · Proverb Candidate

it is an ill bird that fouls its own nest

Proposed by a contributor, not yet supported by evidence.

Meaning · English

One who harms or betrays their own community or family

Literally: a bird that defecates in its own nest

Examples

The corrupt politician is an ill bird that fouls its own nest

AI-drafted example auto-approved by rule (illustrative, not a corpus attestation)

Sources & notes

Listed on English Wikiquote “English proverbs” (CC BY-SA 4.0, retrieved 2026-07-31). Definition drafted by AI (@cf/meta/llama-3.3-70b-instruct-fp8-fast) and auto-approved by rule on 2026-07-31; pending editor spot-check.

Topics: Birds

Common questions

What does “it is an ill bird that fouls its own nest” mean?

One who harms or betrays their own community or family Literally: a bird that defecates in its own nest

Is “it is an ill bird that fouls its own nest” formal or informal?

No register label has been reviewed yet — treat it as neutral and check the usage notes above.

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