For the very first time in my life, a screamer actually provided me with something beneficial: an interesting and familiar image.
During the infamous Plague, there were doctors who would attend to the ill and afflicted who came with a peculiar and unsettling image. They wore these particular bird-like masks that hoarded sweet-smelling herbs and spices in the beak (it was then believed that the illness was caused by the smell as opposed to the germs). Going on TVTropes, I found out a bit more and saw just how Nightmare Fuel inducing these doctors' getup was, despite reminding me a lot of Spy Vs. Spy in their design.
The pose is based off the notable Paul Fürst engraving Doktor Schnabel von Rom ("Doctor Beak of Rome"), courtesy of Wikipedia. Although, honestly, the early images really don't do the masks justice. I've seen them before in exhibits and damn, are they creepy. Yet fascinating as well. If only perhaps you could imagine the kind of setting they were in. Death all around, the chance of illness and affliction rising by the minute, and then these people roaming night and day, hidden away by an avian mask and almost being like psychopomps.
Creepy sh*t if you ask me.