Guittar, J. L., Dear, F., & Vaughan, C. (2009). Scarlet Macaw (Ara <i>macao</i>, Psittaciformes: Psittacidae) Nest Characteristics in the Osa Peninsula Conservation Area (ACOSA), Costa Rica. Revista De Biología Tropical, 57(1-2), 387−393. https://doi.org/10.15517/rbt.v57i1-2.11344