Partridge and Orange - Soft Hackle. The Partridge and Orange is a variation of the Partridge and Green. An extremely old fly this imitation has been known to be used throughout the season without reserve. It uses a grey's Hackle to provide the most lifelike imitation. Use the Partridge and Orange to catch a variety of trout such as brown trout, rainbow trout, bull trout, brook trout and many more.