Bird Vision and Behavior Explained Birds often cannot detect glass surfaces, which makes them vulnerable to collisions. As a result, they may become easy prey for predators, explained Vitalii Liaskivskyi, head of the "Birds" department at the Kyiv Zoo. According to the expert, heavy rain can also pose a threat to birds. Even waterfowl, such as weakened ducks, may drown if they become thoroughly soaked during prolonged cold rainstorms. Can birds see at night? What about common urban