What's he saying?

Here is what Ansel can say: bub bub = bubbles, ball, balloon; dada, mama (sometimes we are both dada.
These words are emerging: truck, up, granddad
These are the signs he uses: eat, finished, more, cereal, bath
He notices all the neighborhood outside sounds - an airplane, a helicopter, the BART train. When he hears BART he says "chshhhhhh" which is the sound it makes. He is also beginning to make vehicle sounds with his cars and trucks.
He is still not walking by himself. He's saving it up for a special day.
He is learning to feed himself.