Melina Barrionuevo, Florencia Bulit, Viviana Massoni Variables affecting egg mass of White-rumped Swallow (Tachicyneta leucorrhoa) https://doi.org/10.56178/eh.v25i1.706 PDF (Spanish) 1-7
Esteban Botero-Delgadillo Morphometric and qualitative criteria for age and sex determination in Mionectes olivaceus (Tyrannidae) https://doi.org/10.56178/eh.v25i1.707 PDF 9-16
Gabriela Scioscia, Andrea Raya Rey, Marco Favero, Adrián Schiavini Factors affecting reproductive success and clutch quality of Magellanic Penguin (Spheniscus magellanicus) in the Beagle Channel, Tierra del Fuego, Argentina https://doi.org/10.56178/eh.v25i1.708 PDF (Spanish) 17-25
Ana L. Ronchi-Virgolini, Rodrigo E. Lorenzón, Adolfo H. Beltzer, Julián M. Alonso Bird assemblages of the Pre-Delta National Park (Entre Ríos, Argentina): analysis of the ornithological importance of different environmental units https://doi.org/10.56178/eh.v25i1.709 PDF (Spanish) 27-40