Fuck man...that's a long read. I've skimmed it. Pretty interesting though. Thanks.
My plants love Bat guano used as tea or soil conditioner, but when my tub of the shit is gone, I will not buy it anymore. I have since found out that the collection of bat poop for these guanos actually destorys their habitats as it has a very strong smell for them, like a homing signal for their nest. In the UK bats are a protected species, so I'm not comfortable using it really, even if it does come from peru or somewhere. Not very eco friendly if you ask me.