NanPai Jianzi feather ， they have different kinds, duck, goose, pigeon and any other animal's feather. most people want to use duck/goose feather as practise . Cause jianzi's feather is a kind of consumable things.

    Jianzi if they use goose/duck feather as normal practise, due to it's material, the source of material is not so expensive so that everyone can afford it. 

    As they said pigeon feather is the most good one, but the young pigeon's  feather is not so rigid and strong, it's easy split and broken (feather fall off) during the practise. However there's a choise,  a little older pigeon , mostly they want to use 10 years pigeon as their's most good feather. Scarcity the 10 years old pigeon will as big as a grown up chicken, when  we pull off the feather from the older pigeon, when pluck they quack.  I can't imagine it.

    Now we have two different kinds feather, big feather and point feather,

    Big feather surface big, falling slowly.

    Point feather it's a little thin and small , more elegant than big feather.

    Material are same, but it depends , suggest  that two kinds of them you should try.