get the PDF of a recent article by Juan Pablo López et al. on this and other fascinating birds from Serranía de Perijá
López-O., J. P. , J. E. Avendaño, N. Gutiérrez-Pinto, and A. M. Cuervo (2014). The birds of Serranía de Perijá : The northernmost avifauna of the Andes. Ornitología Colombiana 14:62–93.
