The Partridge Soft Hackle Nymph Pupa Fly is designed to imitate a variety of aquatic insects in their nymph or pupa stage, which are a common food source for many species of fish. The fly features a soft hackle, often made from partridge feathers, which gives the fly a lifelike movement in the water that can entice fish to strike. The body of the fly is typically made from dubbing or thread and can be tied in various colors to match different types of natural insects. The Partridge Soft Hackle Nymph Pupa Fly is versatile and can be fished in a variety of ways. It can be used in a traditional wet fly swing, dead drifted like a nymph, or allowed to rise like an emerger. It's effective on a wide range of freshwater species, including trout and grayling.