Why do roosters crow in the morning?

Roosters crow in the morning for two reasons. The first reason is that there is a pineal gland in the rooster's brain, which secretes pineal hormone and is sensitive to light. During the day, the rooster will have a stress reaction and start crowing.

The second reason is that roosters want to attract the attention of hens or warn other roosters to swear territorial rights and family status. The cock crowing in the morning is a normal instinctive reaction.

The cock crows as follows:

1. Comparison table of rooster crowing time in spring and summer: the first crowing starts at 3:30-4:00 a.m. and lasts for about 20 minutes, then stops at 15 minutes and starts the second crowing for about 30-40 minutes. At this point, it was already dawn.

2. Comparison table of rooster crowing time in winter: around 5: 30 in the morning, and then stop crowing for fifteen minutes, which is very regular.