Feathers | Fly tying
The feather for fly tying are basic materials when it comes to imitating an insect.
Many types of feather that are used to tie flies, soft hackles, or rather soft feathers, are normally used to tie wet flies, nymphs, streamer of various gernere.
Hard hackles or stiff feathers, on the other hand, are normally used for dry flies.
In reality, which sets limits in fly tying is only the human mind because it associates certain materials with certain dressings. So much so that the cock feathers as well as being usater for tails of dried flies can be used to tie streamers and the other way around for the poorly evaluated ostrich feathers.
With a good selection of feathers, all of high quality, you can tie flies of all kinds, saving time just because you can use them more easily.