1. Variations on the nest architecture in the Rufous-fronted Thornbird complex, Phacellodomus rufifrons (Aves: Furnariidae)

   • Fabio Schunck
   • Vítor Q. Piacentini

   Short Communication 27 August 2021 Pages: 169 - 172

   

2. Breeding ecology of Common Tailorbird, Orthotomus sutorius in a human-dominated habitat of Bangladesh, with notes on parasitism by Plaintive Cuckoo, Cacomentis merulinus

   • Ashis Kumar Datta
   • Sajeda Begum

   Original Article 20 October 2021 Pages: 173 - 178

   

3. Breeding biology and diet of the Chaco Eagle (Buteogallus coronatus) in southeast Brazil

   • Giancarlo Zorzin
   • Eduardo Pio M. de Carvalho-Filho
   • Gustavo Diniz M. de Carvalho

   Original Article 11 November 2021 Pages: 179 - 187

   

4. Nuptial gifts among Brazilian cuckoos: an outline based on citizen science

   • Dárius Pukenis Tubelis
   • Ivan Sazima

   Original Article 19 November 2021 Pages: 188 - 192

   

5. Sexual maturity, molting, and reproductive activity in the Carib Grackle (Quiscalus lugubris)

   • Luisa F. Saavedra
   • Yadi X. Figueroa
   • Martha P. Ramírez-Pinilla

   Original Article 22 December 2021 Pages: 193 - 206

   

6. Visual cues do not increase artificial nest predation in a Brazilian tropical savanna

   • Paulo Victor Resende dos Santos
   • Ingrid Pinheiro Paschoaletto
   • Samara de Albuquerque Teixeira

   Original Article 04 November 2021 Pages: 207 - 212

   

7. Distribution and migration phenology of Purple Martins (Progne subis) in Brazil

   • Clarissa O. Santos
   • Jonathan M. Branco
   • Erika Hingst-Zaher

   Original Article 17 November 2021 Pages: 213 - 222

   

8. Nest predation by Channel-billed Toucans (Ramphastos vitellinus) on Pale-breasted Thrushes (Turdus leucomelas) in a central Amazonian urban forest fragment

   • Edson Rodrigues Costa
   • Leandro Siqueira Fernandes
   • Marcelo Gordo

   Short Communication 23 November 2021 Pages: 223 - 226

   

9. Territory size, population density, and natural history of Cabanis’s Ground Sparrow, an endemic species found in urban areas

   • Roselvy Juárez
   • María de la Paz Angulo Irola
   • Luis Sandoval

   Original Article 27 December 2021 Pages: 227 - 239

   

10. First record of the White-winged Scoter, Melanitta deglandi (Bonaparte, 1850) (Anseriformes: Anatidae) for the Azores and Portugal

    • Luís M. D. Barcelos
    • Rúben Coelho
    • João P. Barreiros

    Short Communication 29 November 2021 Pages: 240 - 242