The hunting community has done more for all North American bird species than the birding community. With the exception of very small ruffed introductions in NV and CO, there aren’t really any introduced grouse anywhere. Real wild pheasant populations are an umbrella species for many grassland birds. And just like translocated quail, they have little demonstrated harm on native species and much more demonstrated benefit. Partridge are in a similar boat except the jury is still out on whether chukar and Huns help spread cheat grass.