Winkler, D. W., Jørgensen, C., Both, C., Houston, A. I., McNamara, J. M., Levey, D. J., Partecke, J., Fudickar, A. M., Kacelnik,
A., Roshier, D., & Piersma, T. (2014). Cues, strategies, and outcomes: How migrating
vertebrates track environmental change. BMC Movement Ecology, 2:.
doi:10.1186/2051-3933-2-10.