"Is it a chicken or a rooster?"
That's like asking if it's a dog or a collie.
I grew up on military bases and didn't get chickens until I was in my 60's. But, I can't remember a time when I didn't know that a hen or rooster referred to the gender of a chicken. It took a little longer to figure out that a peacock was the male of the pea fowl species, and a peahen the female. But, come on; a ROOSTER? Obviously these people never heard of Chicken Little or The Little Red Hen. "The sky is falling!" I feel sorry for their poor kids.