• Bowlin, M.S., Henningsson, P., Muijres, F.T., Vleugels, R.H.E., Liechti, F. & Hedenström, A. (2010a) The effects of geolocator drag and weight on the flight ranges of small migrants. Methods in Ecology and Evolution, 1, 398402.
  • Bowlin, M.S., Bisson, I., Shamoun-Baranes, J., Reichard, J.D., Sapir, N., Marra, P.P., Kunz, T.H., Wilcove, D.S., Hedenstrom, A., Guglielmo, C.G., Akesson, S., Ramenofsky, M. & Wikelski, M. (2010b) Grand challenges in migration biology. Integrative and Comparative Biology, 50, 261279.
  • Croxall, J.P., Silk, J.R.D., Phillips, R.A., Afanasyev, V. & Briggs, D.R. (2005) Global circumnavigations: tracking year-round ranges of nonbreeding albatrosses. Science, 307, 249250.
  • Daan, S. & Aschoff, J. (1975) Circadian-rhythms of locomotor activity in captive birds and mammals: their variations with season and latitude. Oecologia, 18, 269316.
  • Egevang, C., Stenhouse, I.J., Phillips, R.A., Petersen, A., Fox, J.W. & Silk, J.R.D. (2010) Tracking of Arctic terns Sterna paradisaea reveals longest animal migration. Proceedings of the National Academy of Sciences, USA, 107, 20782081.
  • Ekstrom, P.A. (2004) An advance in geolocation by light. Memoirs of the National Institute of Polar Research, 58, 210226.
  • Hill, R.D. (1994) Theory of geolocation by light levels. Elephant Seals: Population Ecology, Behavior, and Physiology (eds J. Burney, B.J. Boeuf & R.M. Laws), pp. 227236. University of California Press, Berkley.
  • Hill, I.F. & Cresswell, B. (1997) The use of a communal summer roost by radio-tagged blackbirds Turdus merula. Bird Study, 44, 114116.
  • Marra, P.P., Hobson, K.A. & Holmes, R.T. (1998) Linking winter and summer events in a migratory bird by using stable-carbon isotopes. Science, 282, 18841886.
  • Naef-Daenzer, B. (2007) An allometric function to fit leg-loop harnesses to terrestrial birds. Journal of Avian Biology, 38, 404407.
  • Newton, I. (2008) The Migration Ecology of Birds. Academic Press, London.
  • Pagen, R.W., Frank, R.T. & Burhans, D.E. (2000) Breeding and post-breeding habitat use by forest migrant songbirds in the Missouri Ozarks. Condor, 102, 738747.
  • Parteke, J., Van’t Hof, T.J. & Gwinner, E. (2005) Underlying physiological control of reproduction in urban and forest-dwelling European blackbirds Turdus merula. Journal of Avian Biology, 36, 295305.
  • Rivera, J.H.V., McShea, W.J., Rappole, J.H. & Haas, C.A. (1998) Pattern and chronology of prebasic molt for the wood thrush and its relation to reproduction and migration departure. Wilson Bulletin, 110, 384392.
  • Robinson, W.D., Bowlin, M.S., Bisson, I., Shamoun-Baranes, J., Thorup, K., Diehl, R.H., Kunz, T.H., Mabey, S. & Winkler, D.W. (2009) Integrating concepts and technologies to advance the study of bird migration. Frontiers in Ecology and the Environment, 8, 354361.
  • Sillett, T.S. & Holmes, R.T. (2002) Variation in survivorship of a migratory songbird throughout its annual cycle. Journal of Animal Ecology, 71, 296308.
  • Stutchbury, B.J.M., Tarof, S.A., Done, T., Gow, E., Kramer, P.M., Tautin, J., Fox, J.W. & Afanasyev, V. (2009) Tracking long-distance songbird migration by using geolocators. Science, 323, 896896.
  • Stutchbury, B.J.M., Gow, E.A., Done, T., MacPherson, M., Fox, J.W. & Afanasyev, V. (2011) Effects of post-breeding moult and energetic condition on timing of songbird migration into the tropics. Proceedings of the Royal Society B, 278, 131137.
  • Webster, M.S. & Marra, P.P. (2005) The importance of understanding migratory connectivity and seasonal interactions. Birds of Two Worlds: Ecology and Evolution of Migration (eds R.S. Greenberg & P.P. Marra), pp. 199209. Johns Hopkins University Press, Baltimore.
  • Webster, M.S., Marra, P.P., Haig, S.M., Bensch, S. & Holmes, R.T. (2002) Links between worlds: unraveling migratory connectivity. Trends in Ecology and Evolution, 17, 7683.
  • Wilcove, D.S. (2008) No Way Home: The Decline of the World’s Great Animal Migration. Shearwater Books, Washington, DC.
  • Wilcove, D.S. & Wikelski, M. (2008) Going, going, gone: is animal migration disappearing. PLoS Biology, 6, e188.
  • Wilson, R.P., Ducamp, J.J., Rees, G., Culik, B.M. & Niekamp, K. (1992) Estimation of location: global coverage using light intensity. Wildlife Telemetry: Remote Monitoring and Tracking of Animals (eds I.G. Priede & S.M. Swift), pp. 131134. Ellis Howard Ltd, Chichester.