Clements, J. F., T. S. Schulenberg, M. J. Iliff, D. Roberson, T. A. Fredericks, B. L. Sullivan, and C. L. Wood (2015) The eBird/Clements checklist of birds of the world: Version 2015 http://www.birds.cornell.edu/clementschecklist/download, läst 2016-02-11
doi.org
dx.doi.org
Foster, Mercedes S. (2007). ”The potential of fruiting trees to enhance converted habitats for migrating birds in southern Mexico”. Bird Conservation International (BirdLife International) 17 (1): sid. 45–61. doi:10.1017/S0959270906000554.