We have trouble in Pinehurst, Texas with the chicken hawks (red tailed hawks) too. Also constantly watching for signs of possum and coon. I've had whole flocks butchered in one fell swoop!
I'm in Pinehurst Texas which is about 40 miles North of down town Houston. No restrictions here in my subdivision. I have several Roos who crow and so do others in the neighborhood. No problems and no complaints.