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Claim check

Do crows hold funerals for their dead?

Misleading

The words are defensible; the impression they create is not.

Crows really do gather and shout around a dead crow, and it has been tested with proper controls. What the experiment found was danger learning: the birds avoided the place afterwards and scolded the person who held the body for weeks. Nothing in the design could detect mourning.

The claim as it circulates

“Crows gather around a dead crow to mourn it, in what researchers call a funeral.”

Where you may have met it: Popular science articles; Social media clips of crows mobbing around a body

Taking it apart

What was claimed
That the gathering around a dead crow is a funeral — a social ritual expressing grief.
What was actually observed
A masked volunteer held a dead crow near feeding territories used by 65 territorial pairs. Crows mobbed the person, then avoided the food site. They continued to scold that mask for weeks. Control conditions used the mask alone and a dead pigeon.
What the evidence supports
That crows treat a dead crow as information about danger: they learn that a place and a person are risky, and they act on it for weeks afterwards. The response was specific to a dead crow rather than to any dead bird.
What it does not support
Anything about grief. The measures were alarm calling and avoidance, which is exactly what a danger-learning account predicts. It is also worth noting that the dead crow was always presented by a human, so the corpse and the person are entangled in the design.

This is a good example of a case where the honest answer is more interesting than the appealing one. "Crows mourn" is a familiar story. "Crows use a dead crow as a warning about a specific human, and remember it for weeks" is a stranger and better-evidenced one.

Go deeper

The claims underneath

Each one carries its own evidence, scope and caveats. Expand any of them to reach the studies.

Crows gather around a dead crow — but it is danger learning, not a funeral

Well supported

Good evidence backs this, though some details remain open.

American crows presented with a dead conspecific mob the person holding it, avoid the location afterwards, and continue to scold that person's face for weeks. The behaviour is consistent with learning about danger; no measure in the study addresses grief.

Who this applies to
American crows
Studied in
Corvus brachyrhynchos

You may have heard

“Crows hold funerals for their dead.”

The gathering is real and well documented. What the experiment measured was the birds learning that a place and a person were dangerous — they avoided the spot and scolded the face for weeks afterwards. Whether anything like grief is also present is untested, and the study was never designed to find out.

Why we rate it this way, and what the caveats are
Well supportedHigh confidence

Directly tested with appropriate controls, including a dead pigeon condition and the mask alone. The evidence for the behaviour is strong; the funeral interpretation is not something the design could support either way.

Caveats

  • Avoidance and alarm are what was measured. Nothing in the design could detect an emotional state.
  • The dead crow was always presented by a human, so the corpse and the person are confounded.

Still unanswered

  • Do crows respond differently to a dead crow they knew individually?

Last reviewed 2026-08-09

The evidence (1 study)

Go deeper

Crows

They know your face. What that actually means is more specific — and more interesting — than the headline.

Last reviewed 2026-08-09