Not to be pedantic or anything, but the protruberance issuing from a Jadrool's head isn't technically a "beak". It's a "snout". The Jadrool is, in fact, the only bird known to have a snout instead of a beak.

Also, while the substance sometimes seen issuing from a Jadrool's snout may be drool, it's just as likely to be snot. After its discovery, it was a toss up as to whether the creature should be called a "Jadrool" or a "Jasnot". The issue was decided when it was determined that any animal with "snot" as part of its name must be an oyster, and that the Jadrool appeared, mostly, to be a bird.