That link is broken, it should be:
http://avianmedicine.net/content/uploads/2013/03/18.pdf
One should also read this:
http://avianmedicine.net/content/uploads/2013/03/17.pdf
Another link with medications:
http://avianmedicine.net/content/uploads/2013/03/09_therapeutic_agents.pdf...
Pictures below are from http://www.hopkinslivestock.com/oral_dosing_article.htm
The hole at the back of the tongue is the trachea - Nothing should ever go in there!
-Kathy