I do hate to be a party pooper but...uh...roosters crow during the day too. You did a grand job on your night box but as soon as the roos are out in the morning they will give a hearty crow. And they will crow when something new or different is around and sometimes they'll crow in the middle of the day just to see if they still can it seems! I do hope your project works for you- roos still need some sunlight for health or it will affect fertility rates.