Matt, if you put hydrogen peroxide on a blood stain, it will bubble. However, I'm not sure if it will also bubble when in contact with normal egg pigment. Could try it on a freshly laid egg for a "rule out".
I like your curtains. i need to do something for my top 2 nest boxes which are "too open" for the girl's liking. I'm sure that will be on my spring "coop tweak" list.Curtains are awesome! This is a black and white picture, because it's at night, in the dark coop taken from my infrared coop camera, but you can see the curtains on the nesting boxes. They are simply cut to size, then stapled onto the wood. The curtains are the insulated room darkening kind. I bought them from the thrift store.
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