Last updated at 14:52

Baby birds vomit smelly orange sick to keep off prey

Eurasian roller chicksOther

These baby birds may look sweet but they've got a stinky little trick...

Biologists have discovered that Eurasian roller chicks throw up a bad smelling orange sick on themselves if they think they're under threat.

The strong smell of the sick lets their parents know that there is potential danger and so they can come and protect them.

It also helps to keep predators away - because no-one wants a meal that's covered in smelly orange goo!