Oh no! Supposed Silkie hen crows! Or is this a false alarm?

[poetry]

Top of the morning to you. I have 2 Silkies and they both lay eyes that are different in size. They both just came out of a brooding stage and the larger white one named Marshmallow made some very strange noises. They are a week shy of their first birthday and at first I thought what's that strange sound. I watched her by my backdoor and saw her stretch her neck up and let out a sound that was very similar to a rooster crow. We don't have a rooster. It was very confusing but I feel better now knowing that it happens