I. M. Gregor-Fors, A. G. Navarro-Sigüenza, L. Morales-Pérez, and J. E. Schondube, “Note on the distribution and migration of the Black-capped Vireo (Vireo atricapilla)”, Huitzil, vol. 13, no. 1, pp. 17–21, Jan. 2012, doi: 10.28947/hrmo.2012.13.1.142.