He continues stroking at his chin thoughtfully, and offers, "Comedians, mostly...?"

That's an exaggeration by a good measure; while there was a slightly broken family who made or sought a living based around joking, there's plenty of the snowflake-looking dragonish monsters around Snowdin who don't spend their time making jokes of... varying quality. Teenagers especially, roaming around and doing whatever teens in the snowy forest do. But while they were all much smaller than that sculpture, and had beaks rather than whatever mouths dragons have... drake and dragon sound so much alike, there must be a connection.