Pendulum sexing experiment.

[The Moonshiner]

Since this method isn't harming the chicks (* some methods do)

Which methods are those?

 

[Not-so Slick Chicken]

Which methods are those?

Common myth is you can determine the sex of a chick by holding it upside down.
But nobody can agree on which reaction means pullet, and which means cockerel.

 

[The Moonshiner]

Common myth is you can determine the sex of a chick by holding it upside down.
But nobody can agree on which reaction means pullet, and which means cockerel.

Usually freezes and pulls legs up to body = female
Usually doesn't hold still and kicks legs or extends them = male
I thought you meant seeing eggs since that's what OP was doing.
Angry wing sexing is the most accurate for young chicks.

 

[Not-so Slick Chicken]

Usually freezes and pulls legs up to body = female
Usually doesn't hold still and kicks legs or extends them = male
I thought you meant seeing eggs since that's what OP was doing.
Angry wing sexing is the most accurate for young chicks.

Ah, yes I didn't correctly explain myself.
I meant that there are myths people use on living animals to determine male from female, that can cause the animal harm.
I don't see any issues with using egg myths? since the egg can't panic and suffocate like a living bird can.

I always forget about the wing/feather sexing thing until it comes up and somebody has to say "only certain breeds are selectively bred for that. Yours isn't"