[header] How to legally protect wildlife [title] Execute a conservation easement. [step] A conservation easement is a legally binding document restricting the use of private land in order to protect a particular resource. In your instance, you may be considering placing a conservation easement on your land to protect the wildlife. 
If you choose to enter into a conservation easement, you will in essence be selling or donating certain property rights to a nonprofit organization (called a land trust). The land trust will in turn have the right to enforce your promise and ensure the land is forever protected for the conservation purposes stated in the agreement.