The dog says woof

This is a conversation I now have approximately four times each day.

Mommy: What does a dog say?
Jack: Woof!

Mommy: What does a kitty say?
Jack: Meeee

Mommy: What does a duck say?
Jack: Ack! Ack!

Mommy: What does a birdie say?
Jack: Twee

Mommy: What does a horse say?
Jack: Day!

Mommy: What does a cow say?
Jack: Woof!

Mommy: What does a frog say?
Jack: Woof!

Mommy: What does Daddy say?
Jack: Woof!

As you can see, he's mastering his key animal sounds. Or not.