tail and feathers
Literal meaning: the tail and feathers of a bird. Also appears in the idiomatic expression 尾羽打ち枯らす (おはうちからす), meaning 'to be in a miserable state' or 'to be worn out'.
See also: 尾羽打ち枯らす (おはうちからす)
The bird spread its tail and feathers and performed a courtship dance.
The expression 尾羽打ち枯らす describes a state of being utterly worn out and miserable.