He did mention that they were so interbred with red wolves, especially over east, that they are almost indistinguishable genetically.
Sometimes they are called Coy-wolves. They are more aggressive than the smaller western coyote’s because of the wolf in them. My sister moved here from Colorado two years ago. She told me about a pack of big dogs chasing her and her little dog to the house. I told her they were coyote’s and she said they were two or three times the size of the coyote’s she saw in Colorado.