Has anyone considered using penguin down as insulation for quilts and bags? Not sure where you would get it or if it's available for consumer use. But, seems to me it would be perfect for backpackers who hike in wet environments and want the light weight and warmth of down and maybe not having to worrying as much about it getting wet. Yeah, I know use a good dry bag and your bag won't get wet.
http://www.extra.rdg.ac.uk/eng/BIONI...20Feathers.pdf