The Japanese Wagtail is about 20 cm long. Both sexes look similar; they have white underparts and black upperparts, throats and backs. Their supercilium is also white. They have a black beak and dark grey legs and feet. The plumage of a juvenile is more grey than that of an adult.
Taxonomy and systematics
The bird's Latin species name, grandis, means large.
The Japanese wagtail eats insects.
Large groups of Japanese wagtails roost together in trees.
Nests are built in cavities near water. The parents both look after the eggs and chicks. Four to six eggs are laid in each clutch.
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