I have noticed that my roo will sometimes crow at night -- but I can only hear him if I'm outside, which makes it pretty easy to pinpoint the reason on those occasions. He's usually fine unless his sleep is disturbed by strange noises and/or lots of activity going on. I'm thinking it's part of his protect and serve mentality to warn the girls that there's a perceived problem.
That doesn't make it any easier to live with if the noise is an issue for you, though, but he probably isn't doing it just to be a nuisance.
That doesn't make it any easier to live with if the noise is an issue for you, though, but he probably isn't doing it just to be a nuisance.