Researchers have found out that birds mumble and stammer their songs just like us, humans when they get high while drinking.
Oregon Health and Science University researchers did a study in order to find out how our different parts of brain respond to alcohol. They also tested their theories on zebra finches after giving them berries and fruits spiked up with alcohol.
They pretty much saw how their birdsongs start to get affected when the alcohol in their bloodstream reaches a certain level. A 0.08 % alcohol level is enough to make the birds slur their songs. This is also the legal driving limit for humans in most of the states.
It was also observed that alcohol affects different parts of the bird’s brains differently.
The findings could help us understand how humans learned to speak because the way birds learn to sing is quite similar to us in learning to speak.