corvids are like, the only birds worth knowing. Other birds are, generally (only generally, I'm sure someone will say they've met exceptions), loud, obnoxious assholes that are dumb as rocks and can be mean as hell (when kept as pets, I mean).

Corvids are wicked smart, can recognize different people, will bring people they like "gifts" (anything shiny) -- hell yes crows are friends, they're some of the only birds worth being friends with.

Yes

Avoiding your friends because you forgot to bring snacks is also a thing humans do with human friends

So, just like real friends.