Aguilar Ullauri, J.M. 2020. Observations on territory fidelity and life expectancy of the Tit-like Dacnis Xenodacnis parina (Thraupidae). Revista Ecuatoriana de Ornitología. 6 (Jul. 2020), 87–89. DOI:https://doi.org/10.18272/reo.vi6.1348.