Purpose: This spell is used to protect a property from mischievous spirits, to ward off fae, and as a defense against unsavory magic.  

You Will Need: One raven cadaver. One small bell with ribbon or string. One tree, pole, or other surface. Safety gear. Something to hold the cadaver in place—twine, wire, or nails will do.

Specifics: First of all, at the time this spell was written, I already had a raven carcass in my garden. One of my roommates’ dogs killed one by the edge of the woods. I only used the remains after asking permission. Even then, I did so outdoors, with heavy gloves and a mask as a safety measure. I’m definitely not saying that you should run around killing birds. Check your local laws for guidelines about animal remains. And please, please, please exercise caution when working with animal remains. And inspect the remains before working with them. If they appear less-than-fresh or there are signs of disease, don’t use them.

Step One - If your practice dictates it, ask for the bird’s permission before moving the body. My practice suggests asking permission, explaining what you intend to do with the remains, and leaving an offering in place of the remains. 

Step Two - Tie the small bell around the bird’s neck, to associate the remains with warning, protection, and cleansing. Recite:

Raven, who through the clouds does roam;
we welcome your passing above our home.
We thank you for visiting. 
We welcome you to stay.
We ask for your protection
Until, once again, you stray.

Step Three - Affix the bird to your pole or tree (preferably out of sight of passersby and neighbors—which, thankfully, we do not have) as close to the edge of your property as possible. 

Step Four - My practice suggests that the raven be given a small shrine in exchange for his/her protection, that’s to be maintained and looked after by its employer.

Again, be safe. Don’t do stupid things. And, for the love of Lenore, wash your hands. 

*Source