warbler: long and thin bill.
hawk: curved beaks with a razor-sharp tip.
doves: slim and short beak.
ducks: flat beaks.
Crows have versatile beaks.
Conical bills are short and thick.
Woodpeckers have a peculiar beak that is rather long..
Storks are mute birds, and clatter their long beaks to communicate.
Cross bills get their name from their peculiar cross-tipped bills.
hummingbird: long and slim bill.
I did more than 5 BC I know a-lot about birds, and just so you have a bigger variety. Please mark as smartest answer!
