Yes, sometimes roosters won't crow if there are other roosters around or a dominant rooster. One of my Lavender Boys was the biggest in the flock but not dominant, so he rarely ever crowed, it even took him so long to crow that I thought he might be mute. Come to think of it, my current biggest rooster, an EE/Barred Rock mix, rarely crows either. The Ameraucanas crow less than the smaller Spitzhaubens, and my Denizli Longcrower and Ayam Ketawa only once in a blue moon. They have their own women though, so maybe they don't need to.