Araya-Céspedes, O., and M. Hanafin. “A Pitangus Sulphuratus (Aves: Tyrannidae) Attack on Ciccaba Nigrolineata (Aves: Strigidae)”. UNED Research Journal, vol. 11, no. 2, June 2019, pp. 162-3, doi:10.22458/urj.v11i2.2303.