This is kinda funny, kinda not....the other morning I noticed this weird brown stuff on one of my crested white duck's crest. I thought: what is this?? I looked closely, then smelled it, and figured out what happened. We have a red heat lamp on at night for them, low enough to explain: this duck, in an effort to get warm, fell asleep with her crest touching the bulb, and OH SNAP, burned her crest off! Oh, No! I hope it will come back after she moults. But I must admit, it is rather humorous.