Sorry Jelmo, your post reminded me there was a message to respond to. Fossilized Seabird Guano is just what the name suggests, bird droppings from many years ago preserved under certain conditions. You'd have to compare analyses of the guano before and after fossilization to say exactly what changes occur. Here's a decent description: http://www.planetnatural.com/site/xdpy/kb/guano-organic-fertilizers.html
If there was a town with that garden store, a Summit Racing outlet and the 3Musketeers Truffle Crisp factory, I'd have to spend the rest of my life there.
Not if I have anything to say about it
Oh trust me, you don't. You'll be my dirty little secret I keep in the basement and feed fish heads. You like sushimi don't you?
It's sashimi you retard I'll be waiting in the basement. You better bring me fishes!