Woof, Woof

We've been working on animal sounds for quite a while now but Tyler doesn't seem very interested. One day a few weeks ago I thought we got "moo" down but it hasn't happened since. This morning, Tyler pulled out his Baby's First Sounds book and opened to the picture of the dog and said "woof, woof." It caught my attention and I asked him what sound a dog makes? He said again, "woof, woof." All morning long he has been saying it as we point to a variety of different pictures and Mongo - "woof, woof, woof." We have our first animal sound and how appropriate it that it is the sound of a dog!