Dyed Rhea Feathers Want to tie Intruder style flies, then you have to use these! Very mobile and soft but very durable. We recommend you steam the feather over a boiling kettle when you open the package for the feathers to open back to their original condition. These feathers are naturally moulted so have stress marks and fibres missing, if you want perfect feathers then please let me know where you can get them so I can get them as well!!!