Lady Amherst Pheasant Tail Feather has very nice material for many salmon flies, but you can use them also in tube flies. Fibres are soft and they are easy to marry with other materials, like turkey. Popular material for Intruder flies.

Feather's length is about 70 cm, barb's length 4-8 cm. Package contains single feather, and feather might not contain barb pairs for classic married wing flies. Best to use for example intruder, tube and other flies where barbs are used without marrying them.