Generally speaking, roosters don't necessarily crow in the morning, roosters crow all day, and compared with most birds, they can feel the change of morning light better than ground animals, so most birds keep the habit of crowing in the morning. Therefore, it is worthy of recognition that most cocks crow in the morning, which also plays a role in announcing the dawn, but they also crow during the day, which is also due to the following reasons.

1, chickens crow in the morning, which comes from the evolution of natural life. In the long-term evolution of history, compared with other birds, roosters gradually formed the habit of crowing in the morning. It is precisely because of this habit that the rooster has always insisted on crowing in the early morning, and has always maintained this nature in the long-term taming process of human beings.

It is not easy for roosters to crow, but most of them crow all day in the morning. In fact, if you carefully observe the rooster, you will find that the rooster not only crows in the morning, but also crows at all times during the day, but it is not so concentrated when crowing, so the rooster doesn't always crow in the morning.

3. The cock crows for a long time in the morning, which is a conditioned reflex. In fact, the morning is softer than the light, and the rooster can feel the change of this light, so he will judge the time and start crowing at this time, even if it is cloudy, which is the nature formed in the long-term evolution process.

Generally speaking, the reason why roosters crow in the morning is also because of their gradual degeneration in the long-term historical evolution. On the other hand, roosters don't crow in the morning, but also all-weather, and the crowing in the morning is more concentrated than other time periods, which is also because of its nature.