Normally droppings are black
brown
Black
The color of feces is caused by something he is eating.
No. It is more like the color of human feces and that of other mammals.
Dark brown, the normal color.
It is brown like us
It is bat feces. Every animal has to remove body waste, including bats.
Force your fecal matter to hold a crayon, then hold a gun to it's head and give it a coloring book. I've done it before - your feces will color up a storm.
it can be pink or white depends on what fish they eat
to lighten their hair color
Fertilizer
The red food coloring in (mostly cheap) red wine combined with the normal brown color of feces = green!