1. Optimal Bird Migration: The Relative Importance of Time, Energy, and Safety
2. Bamford, M., Watkins, D., Bancroft, W., Tischler, G., and Wahl, J. (2008). ‘Migratory Shorebirds of the East Asian-Australasian Flyway: Population Estimates and Internationally Important Sites.’ (Wetland International-Oceania: Canberra, ACT.)
3. Barter, M. (2002). ‘Shorebirds of the Yellow Sea: Importance, Threats and Conservation Status.’ (Wetlands International Global Series 9, International Wader Studies 12: Canberra, ACT.)
4. Contrasting extreme long-distance migration patterns in bar-tailed godwits Limosa lapponica
5. Burnham, K. P., and Anderson, D. R. (2002). ‘Model Selection and Multimodel Inference: A Practical Information-Theoretic Approach.’ (Springer: New York.)