On your earlier question - a just slightly acidic pH is ideal for most plants because it favors free ionic exchange of a lot of the minor nutrients. One side benefit of organic fertilizer is it tends to push the pH down, but if you're in an area with atmospheric pollutants (like acid rain) it might not help!
A lot of "inorganic bonsai soils" aren't very sticky in terms of their cationic capacity and so don't pick up well on nutrients. So an organic can have the added facility of providing a more continuous nutrient level and some beneficial microbial action, but use what works for you.
By the way, both the tree squirrels and chipmunks make excellent organic fertilizer when properly prepared. I can't speak for the coyotes, but the javelinas are mighty tasty blackened, with cayenne pepper.
Regards,
Matt