The Campo Miner is a threatened grassland terrestrial passerine (Machado et al., 2017 (link); Ridgely & Tudor, 2009 ) classified as Vulnerable in Brazil (MMA, 2022 ) and globally (BirdLife International, 2022 ). In the state of São Paulo, the species is considered regionally extinct (Alesp, 2018 ). For these reasons, and also for the low protection of the species in reserves (Marini et al., 2009b (link)), it was included in the National Action Plan (PAN) for the Conservation of Cerrado Birds (ICMBio, 2021a ).
The Campo Miner inhabits the more open grasslands of the Cerrado savannas (Lopes & Peixoto, 2018 ; Machado et al., 2017 (link); Ridgely & Tudor, 2009 ), a Brazilian biogeographic province that suffers from anthropogenic impacts (ICMBio, 2021b ) and climate and land use changes, with severe impacts upon the species' conservation (Hofmann et al., 2021 (link); Marini et al., 2009a (link)). There are also scarce records of the species for the Cerrados of Bolivia and Paraguay, from where it is known from historical specimens (del Castillo et al., 2005 ; Herzog et al., 2016 ). The Campo Miner is a habitat specialist, living in very open grasslands growing on shallow soils, which show patches of exposed soil and that suffer a high incidence of erosion processes, which expose the soil banks where the species excavate the burrows where it nest (Lopes & Peixoto, 2018 ; Meireles et al., 2018 (link)).
Due to its distribution, we used the entire boundary of the Cerrado, covering the three countries of occurrence (Brazil, Bolivia, and Paraguay), as the study area, also considering all Brazilian states where there are records of occurrence of the species (see Lopes et al., 2023 (link); Figure1 ).
The Campo Miner inhabits the more open grasslands of the Cerrado savannas (Lopes & Peixoto, 2018 ; Machado et al., 2017 (link); Ridgely & Tudor, 2009 ), a Brazilian biogeographic province that suffers from anthropogenic impacts (ICMBio, 2021b ) and climate and land use changes, with severe impacts upon the species' conservation (Hofmann et al., 2021 (link); Marini et al., 2009a (link)). There are also scarce records of the species for the Cerrados of Bolivia and Paraguay, from where it is known from historical specimens (del Castillo et al., 2005 ; Herzog et al., 2016 ). The Campo Miner is a habitat specialist, living in very open grasslands growing on shallow soils, which show patches of exposed soil and that suffer a high incidence of erosion processes, which expose the soil banks where the species excavate the burrows where it nest (Lopes & Peixoto, 2018 ; Meireles et al., 2018 (link)).
Due to its distribution, we used the entire boundary of the Cerrado, covering the three countries of occurrence (Brazil, Bolivia, and Paraguay), as the study area, also considering all Brazilian states where there are records of occurrence of the species (see Lopes et al., 2023 (link); Figure
Free full text: Click here
