Curiosity question about determining roos

[Danismex]

I have a friend who raises chickens and swears if you pick up a chicken and the feet, don't both raise up that it's a rooster. But, if you pick up a chicken and one leg goes up, and the other 1 stays straight, it's a hen, is there any truth to this?

 

[nuthatched]

Not even remotely

 

[The Moonshiner]

Absolutely but it's only about 50% accurate