New Zealand "brown cloud" mystery solved

"Scientists have been conducting a month long investigation into why a house in Wellington was splattered with a brown, foul smelling substance."

http://news.bbc.co.uk/2/hi/asia-pacific/3207785.stm

 

This 'brown cloud' certainly generated considerable interest in ducks and airlines, but I'm pleased to report that no brown teal
were involved.
Murray Williams who investigated the 'message from on high' is a good friend. He turns 60 on Sunday and we are off to the party.
We've organised a superb talking/singing/moving decoy duck for him. It cannot, however, be held responsible for the 'brown cloud'.
Murray was 'the' pioneer in the brown teal recovery programme and in 1968 released the first captive reared brown teal into the wild - onto Kapiti Island off the Wellington coast. Thirty four years on brown teal still survive on this totally predator free island.
Dr Anatidae

 

Birds give you the treat of "number one" and "number two" in the same load.

 

Oh, so it's a diarrhetic duck.

Being on DegreeInfo, I wondered if it might be one of those reverse-flush toilets invented by the mechanical engineering department of Saint Regis University.