The white-legged falcon is a resident bird, usually nesting in the abandoned holes of woodpeckers. It perches on the branches of tall trees to patrol prey. When waiting for prey, it often quietly perches on the tip of a protruding branch to wait for ground targets such as amphibians, reptiles, and insects that appear, or preys on flying targets such as dragonflies and butterflies and small birds in fast flight. If it is an insect, it will be caught immediately after it is found. If it is a larger food such as a small bird or frog, it will be brought to the habitat and eaten.
The breeding season is from April to June, and it usually nests in the abandoned holes of woodpeckers. It is 6-20 meters above the ground. The bottom of the nest is covered with insect fragments. Each nest lays 3-4 eggs. The size of the eggs is 24-29 mm × 20-23 mm and 30 mm × 23.5 mm.
On September 21, 2016, "bird lovers" from all over my country gathered in Wuyuan to photograph rare birds. Facing the camera, the white-legged falcon, a national second-level protected animal, was not shy at all, and its cute expression was lovable. It is said to be cute because it looks a bit like a giant panda, so people call it a "panda bird" and a flying "panda". The number of white-legged falcons is extremely small, and it is difficult to find them abroad. In China, only Wuyuan has retained this endangered bird, which has been included in the United Nations "List of Endangered Wildlife".