Inteligent conversation with Silvia

I saw a dead pigeon the other day.
Wow.
It had blood hanging out of its mouth.
Are you sure that wasn't its tongue?
Yeah, the tongue was hanging out the other side.
Impossible, if the pigeon was facing downhill.
You're right. Maybe it bit its tongue and bled to death.
Maybe.
No, wait, pigeons don't even have tongues.
Yes they do, you doofus!
They don't need them for anything. All they eat is dirt.
But it's impossible to swallow anything without a tongue.
So maybe they just let it drop down their throat.
That would choke them, you dummy.
Oh! Well maybe that's how the pigeon died!