Cover illustration: Three species of birds found in the forests of southern Brazil performing some important environmental functions, from top to bottom: Turdus amaurochalinus (creamy-bellied thrush); Pipraieda melanonota (fawn-breasted tanager); Stephanoxis loddigesii (violet-crowned plovercrest).
Photo credit: Filipe Augusto Pasa Bernardi, Caxias do Sul, Rio Grande do Sul, May 2013 (Stephanoxis loddigesii); November 2015 (Pipraieda melanonota); December 2015 (Turdus amaurochalinus).
Cover illustration: The greater rhea, Rhea americana, considered the largest bird in the Americas, photographed by Viviane Zulian. In this issue, André Luza, Arthur Rodrigues, Louisa Mamalis and Viviane Zulian presented the distribution of the species in southern Brazil based on citizen-science platforms and expert-based information.
Cover illustration: The variable hawk, Geranoaetus polyosoma, photographed by Jorge Claudio Fuentes. In this issue Valladares-Faúndez et al. studied the diet of this species in Atacama Desert, and its ecological interaction with other raptor species as well as the role in the control of invasive species.
Cover illustration: Pfrimer's parakeet or Goias parakeet (tiriba-de-pfrimer, tiriba-do-paranã), Pyrrhura pfrimeri, photographed at Nova Roma (Goiás State), endemic species of Cerrado, Brazil. In this issue Dornas et al presented an update of the geographic distribution and assessed the conservation status of the species.
Cover illustration: Male long-tailed woodnymph (beija-flor-de-costas-violeta) Thalurania watertonii, photographed at RPPN Pedra D'Antas, Pernambuco, Brazil. In this issue Berryman et al. presented the conservation status of the species.
Cover illustration: The southern lapwing (Vanellus chilensis), a typical South American bird, whose behaviour is still poorly studied. In this issue Delfino and Carlos identified the behavioural patterns of V. chilensis in agonistic interactions with other species. Photo credit: Henrique Delfino.
Cover illustration: A brassy-breasted tanager (Tangara desmaresti) eating fruits in the Brazilian Atlantic Forest. Carlo et al. (in this issue) review the major concepts and principles that govern interactions between Neotropical birds and plants, with emphasis on the interplay between the functional traits of birds and the fruits they eat. Photo credit: Mathias Pires.
Cover illustration:Attila phoenicurus, a tyranid species studied by Lopes and Schunck (in this issue). Records suggest seasonal migration and breeding in the Brazilian Atlantic Forest. Photo credit: Diomar Mühlmann (In: Mühlmann, D. (2020). [WA4057616, Attila phoenicurus Pelzeln, 1868]. Wiki Aves - A Enciclopédia das Aves do Brasil) - reproduced with author permission.
Cover illustration: Southern subspecies of the scaled dove (Columbina squammata squammata) in southeastern Brazil. Sementili-Cardoso et al. (in this issue) analyzed variations in vocalizations of the two subspecies occurring in South America in relation to geographical isolation and environmental conditions. Photo credit: Guilherme Sementili-Cardoso.
Cover illustration: Cabanis's Ground Sparrow Melozone cabanisi, Orosí, Cartago, 25 May 2013. Endemic to Costa Rica, this ground sparrow is found in dense thickets, undeveloped areas and vegetated gardens of urban areas. Juárez et al. (in this issue) studied its territorial behavior, breeding, diet, population density, and provided a discussion of its IUCN status. Photo credit: Pablo Siles.
Cover illustration: The Lined Seedeater (Sporophila lineola) is a widely distributed species in South America, common in several types of open habitats, including human-altered environments. Martins et al. (in this issue) studied its territorial behavior during the breeding season in southeastern Brazil, as part of the Lined Seedeater Project. Photo credit: Filipe C.R. Cunha.
Cover illustration: Outcrop Sabrewing Campylopterus calcirupicola (Trochilidae), Montes Claros, MG, 16 September 2018. The Outcrop Sabrewing was recently described as a new endemic species from the dry limestone forests of eastern Brazil, following a taxonomic review of the Gray-breasted Sabrewing C. largipennis complex, which further led to the recognition of two other taxa as full species (C. diamantinensis and C. obscurus). This is one of many changes and updates incorporated by the Brazilian Ornithological Records Committee in the second edition of the annotated checklist of birds of Brazil, published in this issue of Ornithology Research (Pacheco et al. 2021). Photo credit: Tomé Silva.
Cover illustration: a male Vermilion Flycatcher (Pyrocephalus rubinus) is a common migratory species within the Neotropical region, and an example of species studied based on citizen science databases. Barbosa et al. in the current issue, provided information on migratory timing and habitat use of species common recorded and photographed in Brazil. An evaluation on the bird citizen science profile and its potentials is provided. Photo credit: Ronald Gruijters.
Cover illustration: Caatinga Cacholote (Pseudoseisura cristata) is a typical and common bird species from the dry forests of northeastern Brazil, the Caatinga biome. In this issue, Tubelis reviewed the methods used for bird inventories in this biome. Photo credit: Hector Bottai.
Cover illustration: Ocellated Crake (Micropygia schomburgkii) is described for the first time in Argentina, with a well-established population. This is the southernmost population of tis enigmatic rail. Photo credit: Jonatas Rocha.
Cover illustration: Black Rail (Laterallus jamaicensis), species with the bulk of its distribution at Maranhão state, Brazil. Photo credit: Pablo Cerqueira.
Cover illustration: Turkey Vulture (Cathartes aura), and Yellow-headed Vulture (Cathartes burrovianus) at Alagoas state, in northeastern Brazil. Photo credit: Daniel Igor Silva.
