What does the Horsey Say?

It's hard to keep up with all the new things Luke is doing. This one I'm particularly excited about. We visited Grandma Lynn yesterday and I took Luke outside to see the neighbor's horses. He was very interested in the horses (he also likes to chase Grandma's cats around too - I guess he's an animal lover).  One of the horses made the sound they make through there nose (I don't know how you describe it). Anyway, I started making that sound and Luke started copying me. Now he can tell me what the horsey says!!