flight feather

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flight feather

n.
Any of the comparatively large, stiff feathers of a bird's wing or tail that are necessary for flight.
References in periodicals archive ?
This helps maintain the integrity of the retrices until the bird is no longer confined.
Pinching off syndrome (POS) is a feather abnormality in which all remiges and retrices become malformed and are lost during the nestling stage, rendering the bird unable to fly.
At necropsy each bird was examined for wing flight feathers (remiges) and tail flight feathers (retrices) that contained vascular pulp.