If they're roosters, I'm not sure. I'll need to talk to my neighbors as I live in central TX neighborhood with enough space for some backyard chickens, but not enough space to have noisy roosters.
Extra pics:
It is a blue band, just has a single digit on it. If there's a place I can look them up, I'd love to. But no idea what it means or where to go to look it up for TX
Yes, I've got them crated up right now and I'll get better profile pics in the morning. I'm completely new to chickens (mammals and reptiles have been my thing), and I've been researching since these wandered into my yard an hour before sunset today.