- Book Chapter
- Biology and Conservation of the Monarch Butterfly
- Monarch research, Migration
Cockrell BJ, Malcolm SB, Brower LP. 1993. Time, Temperature, and Latitudinal Constraints on the Annual Recolonization of Eastern North America by the Monarch Butterfly. Pages 233-252 in Malcolm SB, Zalucki MP, eds. Biology and Conservation of the Monarch Butterfly. Los Angeles, USA: Natural History Museum of Los Angeles County.
- Eastern Breeding