Birds get angry when their favourite snacks are swapped in magic trick

Eurasian jays squawk and fly away when shown a cups-and-balls-style magic trick in which their favourite snacks are swapped out for other foods

Birds get angry when their favourite snacks are swapped in magic trick
Eurasian jays squawk and fly away when shown a cups-and-balls-style magic trick in which their favourite snacks are swapped out for other foods