NOT canadian geese!

Here is the conversation Micah and I had in the car this morning.
M: Mom, I see some birds over there!
Me: Are they canadian geese? (He's been telling me about canadian geese, I'm not sure where he learned about them, maybe grandpa?)
M: No, they're just birds.
Me: How do you know?
M: Because they're not making letters. (I think he means the V when they fly)
Me: Oh, only canadian geese make letters?
M: Yeah.
Me: What kind of letters do they make?
M: Oh, you know... A, B, C... D, E, F... GHIJK, elaneno p...
ME: Oh, they make all those letters?
M: Yup.