The knowledge what kind of feather is best used for what kind of intent can only be found out by having a knowledge of the different birds... A pigeon feather is not as helpful for creating a defense strategy than a feather taken from a bird of prey, obviously... So, with the Corvidae family, knowing that Crow is the Guardian of Ceremonial Magick and Healing... you know that adding a Crow Feather to this sort of Spell or Ritual would make sense and add to your working. [SkyRavenWolf.com]