My New Hampshire crows at 2 and 4 am sometimes. Never one or the other, always both. For a long time I thought the lights from the house were messing with him but even with adjustments he still would occasionally do it. I then thought perhaps predators were messing up his schedule. Even with the dog sleeping outside he'd still do it. Well, after staying up one night I discovered it was actually the rooster down the street who was crowing first. Now my neighbor and I are trying to figure out why his Bantam Game feels the need to crow at 2 and 4 am.
As silly as it sounds we live in the ghetto and we are thinking the long whine of police sirens are causing it but I don't know how we can stop that. Point being, only a rooster knows why he crows. Sometimes they are just punks.