Vol. 41 No. 1 (2026)

Articles

Alejandro A. Schaaf, Miguel F. Cura, Martin R. De la Peña

11-18

Cavity-nesting birds: evaluating the use of native and exotic tree species in the Espinal ecoregion

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DOI: https://doi.org/10.56178/eh.v41i1.1528

María M. Demmel Ferreira

19-31

Endocranial anatomy of the fossil furnariid Pseudoseisura cursor (Aves, Passeriformes): paleoecological perspectives and evolutionary implications

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DOI: https://doi.org/10.56178/eh.v41i1.1530

Gabriela T. Gabarain, Laura Fasola, Patrick I. Buchanan, Ignacio Roesler

33-45

Hand rearing of the Hooded Grebe (Podiceps gallardoi) and the Silvery Grebe (Podiceps occipitalis) as a fundamental recovery strategy for a critically endangered species

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DOI: https://doi.org/10.56178/eh.v41i1.1529

Vera Gabelli-Suarez, Flavio Quintana, Agustina Gómez-Laich

47-62

Optimizing the use of GPS devices to estimate home range and foraging areas in seabirds: The Imperial Shag as a case study

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DOI: https://doi.org/10.56178/eh.v41i1.1533

Alnizia Galdino Pereira, Kaylane de Oliveira Silva, Luana Alencar, Ighor Dienes Mendes, Edson Guilherme

63-74

Status of Nearctic and Austral migratory birds in the Brazilian state of Acre, Southwestern Amazon: insights from citizen science contributions

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DOI: https://doi.org/10.56178/eh.v41i1.1531

Maximiliano M. Hernandez, Juan Pablo Seco Pon, María P. Berón

75-86

Time–activity budgets of three coot species in a relict of human-modified coastal wetlands in southeastern Buenos Aires Province

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DOI: https://doi.org/10.56178/eh.v41i1.1534

Melisa A. Marquez, Sandra M. Cappelletti, Natalia G. Fracasi, Pamela Graff

87-98

Nest characteristics of secondary cavity-nesting birds using nest boxes in Lower Paraná Delta plantations

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DOI: https://doi.org/10.56178/eh.v41i1.1535

Melina Barrionuevo, Marcelo Acha, Esteban Frere

99-113

Key marine areas during penguin migration in the Argentine Sea: contributions to their conservation knowledge

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DOI: https://doi.org/10.56178/eh.v41i1.1537

Daniel Velasco-Cedeño, Elías Viteri-Basso, Walter Vivas, Ariel Guerrero-Campoverde

115-129

Birds in the Concrete Forest: Nest-site Use on Human-made Structures across Western Ecuador

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DOI: https://doi.org/10.56178/eh.v41i1.1538

Lucia Mentesana, Nico M. Adreani

131-142

Nest-site characteristics of Rufous Hornero (Furnarius rufus) across its distribution as reported by citizen scientists

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DOI: https://doi.org/10.56178/eh.v41i1.1540

Cristian J. Alesio, Daniel A. Paiz, Julia Gastaudo, Eduardo P. Spiaggi, Pablo G. Rimoldi

143-160

The avifauna in the different landscape components of Arroyo Saladillo, southern Santa Fe Province, Argentina

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DOI: https://doi.org/10.56178/eh.v41i1.1541

Short Communications

Fabio Schunck, Marcelo Bokermann, Werner C.A. Bokermann

161-165

Wild hybridization between White-faced (Dendrocygna viduata) and Fulvous (D. bicolor) Whistling Ducks

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DOI: https://doi.org/10.56178/eh.v41i1.1536

Aylen María de Prinzio, Rocío Mariano-Jelicich, Martín Sotelo, Leandro M. Marbán, Sofía Copello

167-171

Discovery of Two New Colonies of Olrog’s Gull (Larus atlanticus) in the Bahía Blanca Estuary, Buenos Aires Province, Argentina

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DOI: https://doi.org/10.56178/eh.v41i1.1539