[Well now. Isn't that something.

He doesn't have the knowledge to guess what the phoenix actually is -- there is no Doctor in his world, no Gallifrey and no Time Lords -- but when he looks closer he can see vastness. Something that stretches out beyond his understanding, probably beyond the understanding of anyone from his side of existence.

For a moment, he just looks at the bird and blinks, before saying:]

Aren't you a fascinating thing.