Wildlife rehabilitation facilities are often times full and cannot take in more orphans; many times forced to euthanize animals that would not be in the situation if not for humans.  The Colorado Department of Parks and Wildlife controls any licensing around Wildlife Rehabilitation and in order to get a license, your home must be inspected for proper cages and supplies. 

At this time, Wheat Ridge is denying the request to allow wildlife rehab because of zoning that doesn't exist in Colorado because owning wildlife in Colorado is illegal.  Other cities have approved wildlife rehab on a case-by-case basis knowing that you have to be approved by Colorado Department of Parks and Wildlife and follow strict regulations.