I was told my first batch of chicks that I picked up from a feed store where all female too.My husband is working on a coop right now.
And what do you mean extra boys?
I was told they are all female, well supposed to be any ways
They all ended up being males!
LOL
I laugh now but it was not funny at the time.
I just didn't know better and listened to the feed store employees thinking they knew what they were talking about.