普通楼燕

• If the long primary feathers of the common swift are damaged, it is unable to fly. This is because these feathers play a key role in flight.
• The common swift should not be fed bread, grains, or earthworms, as these foods are unsuitable and may lead to death or improper feather development.
• The common swift resembles a swallow in body structure, but its closest relatives are hummingbirds.
• Approaching the nest, the common swift does not slow down until entering, as if crashing into a rock and seeping through the wall.
• The common swift flies at tremendous speed, accelerating to 111 km/h in horizontal flight. According to other data, its speed may be even higher.
• The common swift can live up to 21 years in captivity, which significantly exceeds its lifespan in the wild.
• The common swift cannot hunt during rain because its food is only insects, which it cannot catch in bad weather.
• The common swift is an exclusively insectivorous bird, consuming no other types of food. Adult birds feed their chicks compressed insect balls caught in flight.