1. Adams RJJ, and Brewer R, 1981. Autumn selection of breeding location by field sparrows. Auk98:629–631.
2. Baillie SR, Sutherland WJ, Freeman SN, Gregory RD, and Paradis E, 2000. Consequences of large-scale processes for the conservation of bird populations. J Appl Ecol37:88–102.
3. Brewer R, and Harrison KG, 1975. The time of habitat selection by birds. Ibis117:521–522.
4. Clobert J, Danchin E, Dhondt AA, and Nichols JD, 2001. Dispersal. Oxford: Oxford University Press.
5. Cramp S, and Perrins CM, 1994. The birds of the Western Palearctic, vol. 9: buntings and New World warblers. Oxford: Oxford University Press.