What is the noted foraging technique of the American Redstart involving its plumage?

Answer

Fanning tails and partially opening wings to flush insects (flycatching/gleaning)

The American Redstart is renowned for its active foraging display where males fan their tails and partially open their wings to startle or flush hidden insects, followed by flycatching or gleaning them.

What is the noted foraging technique of the American Redstart involving its plumage?
birdsongcharacteristicfeatherredstart