Grody but pragmatic. It is necessary to know what normal and abnormal waste looks like from your birds. To this end, the Poultry Page Forum has created an online guide to poultry feces. Great job PPF! You can view what they have created thus far but be forewarned, its not pretty.
Note: 9.17.14: The poo chart images were relocated and so no longer on Pluck & Feather. However, the original chart is still up and useful as ever at, click here to view.