"This episode? I don't really know, I found it slightly disjointed but I'm fine with it, though I'd love to know what happened to Chilton and Miriam Lass."
Dead (Chilton) and brainwashed and drugged (Miriam).
I agree with you, I also found the episode somewhat disjointed and a bit unsatisfying. Not enough backstory on the psycho social worker for me to get invested and interested.
I read somewhere that he "sewed" the bird into the deceased's chest cavity, but I'm having a hard time imaging HOW as well.