Vinueza-Hidalgo, G.S. et al. 2015. First nesting record of the Peruvian Pelican Pelecanus thagus (Pelecaniformes: Pelecanidae) in Ecuador. ACI Avances en Ciencias e Ingenierías. 7, 2 (Dec. 2015). DOI:https://doi.org/10.18272/aci.v7i2.249.