Dead Duck Day – 5 June

An important announcement  just arrived in my inbox:
Dead Duck Day – 5 June

On 5 June 1995 an adult male mallard (Anas platyrhynchos) collided with the glass façade of the Natuurmuseum Rotterdam and died. Another drake mallard raped the corpse almost continuously for 75 minutes. Then the author, Kees Moeliker, disturbed the scene and secured the dead duck. Dissection showed that the rape-victim indeed was of the male sex. It is concluded that the mallards were engaged in an ‘Attempted Rape Flight’ that resulted in the first described case of homosexual necrophilia in the mallard.

For the pdf of the paper visit 

This paper was awarded an Ig Nobel Prize for Biology in 2003

See also

It is the organizers’ wish that Dead Duck Day becomes a worldwide event on June 5th to commemorate the dramatic death of any duck anywhere and to find ways to prevent the deaths of ducks by traffic, hunting, windows, poison and other unnatural causes.


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