"Oh. Hi. You're incredibly bold. I am... just going to speak in a soft tone of voice and get a decent look at you to try and work out what sort of bird you are, but you have a red breast, so I'm saying you're probably a type a robin."

The medical text he's currently reading is about suitable threads for stitches and making casts and splints for broken bones. The sort of thing someone with modern first aid training might be interested in if they didn't have access to any modern medical equipment.