Marco frowned for a moment, wondering what the hell she could be talking about - before deciding that no, he probably did not want to know.

"Hawks as messenger birds?" he said, dubious. "How the hell do you train hawks to be messenger birds? They're not like pigeons - they won't just fly back to the same point all the time. And that doesn't even begin to explain how you can have someone riding with what. What, do they have some super ninja secret shrinking ability or something?"