sexing a buff orpington as a day old chick

[Loving My Peeps]

Can anyone tell me if it is possible to sex a day old BO chick by the wing feathers? Is there any other way to tell? I just hatched 11 with more on the way. I noticed that some had a darker head than others....does that mean anything?

 

[Judy]

Here's a thread that explains wing sexing: https://www.backyardchickens.com/forum/viewtopic.php?id=386757