White-rumped swifts are summer migratory birds. They migrate here in spring from April to May. They migrate away in autumn from September to October. Some of them stay in Hong Kong and Taiwan.
White-rumped swifts like to fly in groups, often flying back and forth in groups over their habitats. In the morning, they often fly in groups near the rock wall, sometimes approaching the rock wall, sometimes flying in groups, chasing each other, and going back and forth between the nests from time to time. After 9-10 am, they often fly away from the rock wall and fly to the sky or over the forest and tundra. Sometimes they can fly 20 kilometers away from the nest area. On cloudy days, they often fly at low altitudes, often galloping at low altitudes, passing over the ground or water surface. On clear days, they often fly at high altitudes or fly in circles over the forest. The flying speed is very fast, and they often call while flying. The voice is sharp and monosyllabic. Its voice is like "ji-ji-ji-ji-".
White-rumped swifts feed on a variety of insects, including leafhoppers, wasps, wasps, stink bugs, aphid flies, parasitic flies, flies, mosquitoes, spiders, mayflies, etc. They prey in flight. They fly slower than needle-tailed swifts, and make irregular wing beats and turns when feeding. Sometimes they nest on buildings together with common house swifts.
Listed in the 2012 Red List of Threatened Species of the World Conservation Union (IUCN) ver 3.1 - Least Concern (LC).
This species has been included in the "List of Terrestrial Wildlife with Important Economic and Scientific Research Value under State Protection" issued by the State Forestry Administration of China on August 1, 2000.
