can I sex BLRW when they are hatched?

[ChickFila]

Can I do feather sexing when they are hatched?
If so, do you know any website or youtube I can learn more about it?
I just purchased BLRW eggs, have hatched them before but didn't pay much attention to it.
Now, I can keep only hens out of these eggs and trying to find out how to tell girls and boys.
Thanks!

 

[tadkerson]

Quote:
No The only way is to sex BLRW is by observing the sex organs inside the vent.

Get this book

http://www.avianpublications.com/items/fowl/itemB20.htm

Tim