I think you all have seen the resident evil movies and noticed it has mutated zombies right. Well what if The Walking Dead had mutated zombies, not Lickers and Hunters. Just zombie dogs or zombie crows. Tell me what do you think and why do you think they should appear and why not

NOTE: I don´t want mutated animals in The Walking Dead, I just wanna know your opinion. Thanks anyway.
Thumbnail zombie dog
Thumbnail zombie crow