Sense Of Smell
Birds will reject a hatchling if it smells like a human has touched it. It turns out birds don’t rely on their sense of smell that much, and they’re generally happy to get their babies back.
This “fact” was created to stop kids from touching baby birds. It’s gross and can cause illness. There is a whole genre of myths and facts meant to stop children from doing dangerous things.
Story credit – Reddit/ArminTanz