Juan José Sáez, Tania Hornauer-Hughes, André Tomaz, Nicole Van Rees, Juan C. Torres-Mura Natural history of the Peruvian Booby (Sula variegata) in the Quirilluca cliffs, Valparaíso, Chile https://doi.org/10.56178/eh.v31i1.569 PDF (Spanish) 1-6
Fabio Pruscini, Federico Morelli, Paolo Perna, Roberto Mazzeo, Paolo Cavitolo, Marcelo Bertellotti, Andrea Catorci , Riccardo Santolini Roadside raptor surveys in Valdes Peninsula (Patagonia, Argentina) https://doi.org/10.56178/eh.v31i1.570 PDF 7-11
Myriam E. Mermoz, Daniela M. Depalma, Alejandra C. Valverde, Juan M. Gancedo, Emilio M. Charnelli Evaluation of road borders in the Pampas Region as a source of resources for birds https://doi.org/10.56178/eh.v31i1.571 PDF (Spanish) 13-26
Alexis Cerezo Blandón, Chandler S. Robbins, Barbara Dowell, Miguel Ramírez, Antonio López, Javier Obdulio Negative trends in bird abundance are strongly correlated to rainfall decline in a Central American tropical forest https://doi.org/10.56178/eh.v31i1.572 PDF 27-40
Emmanuel Zufiaurre, Mariano Codesido, Agustín M. Abba, David Bilenca Differential use of crop and livestock fields by land birds in the Pampas Region, Argentina https://doi.org/10.56178/eh.v31i1.573 PDF (Spanish) 41-52
Germán O. García, Carla A. Paterlini , Peter H. Becker The use of hematophagous insects for blood collection in birds: the Common Tern (Sterna hirundo) as a case study https://doi.org/10.56178/eh.v31i1.574 PDF (Spanish) 53-56
Karina Soria , Exequiel Barboza First description of the nest and nestlings of Diglossa sittoides (Thraupidae) in Argentina https://doi.org/10.56178/eh.v31i1.575 PDF (Spanish) 57-60
Enrique Murgui Urban bird ecology and conservation https://doi.org/10.56178/eh.v31i1.576 PDF (Spanish) 61-62
Víctor R. Cueto Magellanic Sub-Antarctic ornithology. First decade of long-term bird studies at the Omora Ethhobotanical Park, Cape Horn Biosphere Reserve, Chile https://doi.org/10.56178/eh.v31i1.577 PDF (Spanish) 63-65
Gustavo S. Cabanne Handbook of the birds of the world. Special volume. New species and global index https://doi.org/10.56178/eh.v31i1.579 PDF (Spanish) 66-68
Cristián F. Estades Nidificación de las aves del bosque templado andino de Chile https://doi.org/10.56178/eh.v31i1.580 PDF (Spanish) 68-69