One feisty rooster my parents had several years ago was crowing very early...he had to wind his crow down at the end. It was so hilarious to hear! When he started crowing, my dad was going out to work and couldn't figure out for several mornings what their noise was (my folks are out in the country with lots of wildlife and nearby farm animals, so always weird noises happening!). Around morning 4 or 5, he finally figured out it was that silly rooster winding up to crow and winding back down again!