Recently completed this informative short on line course through the University of Edinburgh.
The course is run through Coursera and is free, unless you want to pay a smallish fee for a verified certificate.
If you have chickens as pets, or work with chickens, I recommend the course. There are a few things I did not agree with, and feel we have kinder techniques to deal with some behavioral issues, but for the most part, I found it interesting and beneficial.
Let us know if you do end up taking the course!