"Band-aid?" he questions softly, looking at it. It doesn't look like he knows what it is, but his mind is turning gears to put things together. It's taking a bit, though. Things have happened quickly. 

Kaori looks a bit worried. It's not even about the wound--it's the prospect that one day he might have to go to the hospital, a service he really can't afford and can't see himself affording anytime soon. "It's fine. Thank you."
He takes the band-aid and fidgets a bit with it, trying to figure out what it is. Maybe it's a happy device? He guesses that it is. He wonders and marvels at it for a good half minute before he tucks it into a tiny pocket like he's gonna protect it as he would a good luck charm. It's taking him a bit to remember how Francis said it's something to be put on a cut to cease bleeding and prevent infections. 

You ain't the only weird one here, Francis. 
"Yeah! I'm okay," Kaori says with a nod. He looks back at the bird. "I don't think he is, though..."
This is really a bruh moment.

The bird just looks ticked at Kaori. It doesn't even seem like it's in pain or something at this point. 100% of its energy is directed towards looking peeved.
Kaori is a little bit dense at the moment. He doesn't seem to realize its feelings. Nodding a little bit more again, he takes out the band-aid from earlier and slightly holds it in the bird's direction. "I'm sorry for making you afraid," he offers, the band-aid now looking an awful lot like a goodwill token than something meant to hide future scars. "Do you like this purple cat?" After three seconds he adds with a adorable tone, "Meow?"
It doesn't even cross his mind that cats sometimes like monching up birds for treats. 

At least it doesn't look like its only purpose is to peck Kaori again. Still, it doesn't look relaxed. Far from it.
"I'll give you this after we look a bit more into what's hurting for you," Kaori explains. He takes out a small slip of paper to put the band-aid there, like a sticker. He doesn't quite edge it towards the bird yet, though.

The bird do be staring suspiciously at the sticker like it thinks some other bird with giant teeth (yes, teeth) is going to dive out of it.
"Hey, maybe we can try to untangle your wings and see if you're hurt? It must be super uncomfortable to be laying down like that," Kaori suggests. "Don't birds sleep standing up? Though I guess your kind can turn your heads around all the way too."

"You don't need to do anything!" Kaori exclaims positively. "You're really good emotional encouragement. Though, I guess you probably do need to go do things. Sorry for keeping you here," he apologizes with sincerity. 
The bird does not seem convinced at the moment. R.I.P.

Kaori makes a confused sound. He takes a moment to look back at the band-aid and then back at the wound. Speaking of which, for some reason, it's still bleeding, but the sides of the wound have visibly pulled together. That means it's healed much faster than most mortal humans, but still weird that it's bleeding.
Wonder what he doesn't understand.
"Um, I guess that could work, but that would probably be a waste of...band-aids," he says slowly.
Yay! He finally got what the band-aid does!

Kaori, not really wanting to argue, sticks his hand towards Francis like an obedient child.

The bird is, like, dunno how to say it, but it's hard to tell what it's actually thinking. Maybe it's thinking, "You think band-aids will help me? Really?" which is kinda a logical thing to think, but anyways. But it's scrutinizing Francis pretty hard.

"The offer's still open, sir," Kaori speaks like he's serving someone at a restaurant. "Hm...if you're okay with being picked up for two seconds, maybe three? Um, you..." He looks to Francis for suggestions and mouths, "What should he do if he agrees?"

Bruh, Francis missed the question.
Kaori gives a little laugh. "Maybe if you're okay with it, flex your foot?" he suggests to the bird.

What was he supposed to do? List six possibilities? His decision-making abilities aren't that bad if he could think of six possibilities.
The bird is thinking. Yeah. Maybe. Or maybe it doesn't understand that much human speech.

After a lot of thought, the bird flexes its foot grudgingly.
"Yay!" Kaori cheers. Quietly.

Kaori doesn't look back, because he said less than 5 seconds. His hands work like a surgeon as he tries to change as little about the bird's feathers and such. He does shift the bird to a slightly easier position, though. The one it's been in would probably be the equivalent of a human turning his/her/their head 320 degrees and then staying that way. That's how the artist sees it, anyways, even if he doesn't know that much about birds.