cluck cluck

Our pediatrician told us we should start working on animal sounds with Max. (Even though I've been doing this since he was like a week old). So Mark was reading this farm book to him last night and saying what each animal says. He got to the chicken and looked at me and was like "wait, what does a chicken say?". I was like "cluck cluck" haha. I wonder why Max doesn't know these yet.