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The Cry of the Urutau

Voices & soundsForests of Paraguay · Told for generationsExplained

At night in the forests of South America, a long, mournful wail drifts down through the trees. The Guaraní say it is a girl who became a bird.

What was reported

In the forests of Paraguay, Argentina and Brazil, a slow, mournful, descending cry, like a person sobbing, can be heard on moonlit nights. It has long unsettled travellers, who couldn't see where it came from.

A Guaraní legend says it is the voice of a young woman who climbed a tree and wept for her lost love until she was turned into a bird, the urutau.

Explanations offered

The call belongs to the common potoo, a nocturnal bird whose grey-brown feathers make it look exactly like a broken branch during the day. It sits motionless and is almost impossible to spot, which is why the voice seemed to come from nowhere.

When
Told for generations
Where
Forests of Paraguay
Witnesses
Guaraní tradition and forest travellers
Status
Explained

Famous cases are real, widely reported events. Each file sets out what witnesses said and the explanations that have been offered, without taking a side.