Salmon Faverolle 3 chicks male or female?

[Texaschickenmath444]

I was given 3 Salmon faverolle chicks today, and I'm new to chickens still. It's my first time dealing with this breed. The lady told me they are all roosters. That is why she didn't want them. She raises chickens all kinds. She knows her stuff. It's me doubting lol hoping I got one hen. Not sure of age.
I separated the 3 new ones because my 2 EE roosters were attacking 2 of them.

 

[nuthatched]

Did the lady who sold them to you tell you that you're supposed to quarantine new birds away from your flock for at least a month? If not, she doesn't know that much. But shes correct on them beimg cockerels. Salmon faverolles are sexually dimorphic, the males will have black feathers while the females will stay a light brown.