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This is Scientific Americans' 60-second science. I'm Jason Goldman. Got a minute?

Of the many thousands of species of birds on earth, only about 25 are known to do something special with their food.

They dunk it in water before eating. Nobody knows for sure why the birds do it. It might moisten foods for easier eating, or it might wash away

nasty tasting chemicals. The behavior is seen most often in super smart species like crows,

and now it's been observed for the first time in a bird called the Australian magpie.

We were very, very lucky to see it. It was entirely by chance.

University of Cambridge zoologist, Eleanor Drinkwater.

And so on a day-to-day basis, we'd kind of get up and we would essentially spend hours and

hours following these different families of magpies around the place and tempt them towards us

and then see how they reacted when we presented them with different foods. The researchers offered an adult male magpie, the mountain Katie did,

an insect that's presumed to be distasteful.

It's thought that the insect defends itself against being gobbled up

by secreting a bitter substance from underneath its wings,

as well as by vomiting a bitter-tasting cocktail.

This one individual comes up and takes the Katie did that we present it and kind of waddles off

and then goes and kind of plops it in a little stream that was behind us.

We were kind of watching this together and looking at each other like this is a bit interesting.

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