Roundworms, also called ascarids, are the most common intestinal parasite found in poultry. These worms are species-specific, so there is little chance of cross infection among poultry species or from poultry to pets or humans.

However, chickens do not have night vision. They can’t see in the dark. But chickens can sense whether it is light or dark through the pineal gland. The pineal gland sits above her midbrain behind her eyes, and allows a chicken to sense daylight as well as the changing seasons. Mar 13, 2018