This list is idiosyncratic in a variety of ways. It mainly consists of notes on readings that I have used for philosophy and film classes (at both undergraduate and graduate levels) and other presentations. However, it also includes notes on pieces I have considered using but have not done so for a variety of reasons as well as a few others that have interested me. I do not know of any sense in which this list can be considered canonical.
Darnton, R. 1984. Workers revolt: The great cat massacre of Rue Saint-Séverin. In Darnton, R. The Great Cat Massacre: And Other Episodes in French Cultural History. New York: Basic Books, pp. 75 -104.
Foreman, D. 2000. The real wilderness idea. USDA Forest Service Proceedings 1: 32 -38.
Jamieson, D. 1998. Animal liberation is an environmental ethic. Environmental Values 7: 41 -57.
Routley, R. 1973. Is there a need for a new, an environmental, ethic? Proceedings of the XVth World Congress of Philosophy; 17th to 22nd September, Varna, Bulgaria 1: 205 -210.
Singer, P. 1974. All animals are equal. Philosophic Exchange 5: 103 -116.