flight-feather

There was only a scarlet band of cloth around his temples, and the flight-feather of the white-crested eagle set there low above the left ear and slanting backward.

The Hidden Children 1899

I have been assured by three fanciers that they have seen twelve in Scanderoons; but as Neumeister asserts that in the allied Florence Runt the middle flight-feather is often double, the number twelve may have been caused by two of the ten primaries having each two shafts to a single feather.

The Variation of Animals and Plants Under Domestication, Vol. I. Charles Darwin 1845