Anthropogenic materials used by birds to nest in an urban landscape of Costa Rica


Plastic waste
Wildlife-human interactions

How to Cite

Esquivel, C., De la O, J. M., Sánchez Vargas, S., Paniagua, S., Esquivel Cambronero, A., Núñez, D., & Quesada Ávila, G. (2020). Anthropogenic materials used by birds to nest in an urban landscape of Costa Rica . UNED Research Journal, 12(2), e3124.


Introduction: Urbanization has affected the materials available for bird nesting, including anthropogenic materials that may be dangerous to the birds. Objective: To quantify the materials used by several bird species in an urbanized environment. Methods: We evaluated the composition of 20 nests in the campus of Universidad Nacional, Costa Rica. Results: 53% of nests contained anthropogenic waste, classified in 13 types; the most common were wool, strings and thread. The species with the highest percentage of anthropogenic nest weight was Campylorhynchus rufinucha. Conclusion: There is a widespread use of anthropogenic materials to nest in these urban Costa Rican birds.


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