Justification of Red List Category
This species is listed as Near Threatened as it is suspected to be declining moderately rapidly as a result of habitat loss within its small range.
The global population size has not been quantified, but this species is described as 'uncommon' (Stotz et al. 1996).
Slow to moderate declines are likely to be occurring, owing to on-going habitat loss and fragmentation.
Euphonia chalybea is fairly common, but local, in the Atlantic forests of south-east Brazil (Rio de Janeiro south to Rio Grande do Sul), east Paraguay (recently in Canindeyú, Alto Paraná, Caazapá and Itapuá, with historical records from Amambay), and north-east Argentina (Corrientes and Misiones) (Ridgely and Tudor 1989, Hayes 1995, Lowen et al. 1996, Clay et al. 1998, J. Mazar Barnett in litt. 1999).
This species occurs sparsely in lowland forest, forest edge and overgrown plantations to 500 m, and has been recorded feeding (perhaps predominantly) on cactus fruits (probably epiphytic) (Isler and Isler 1987, Sick 1993) and mistletoes (J. Mazar Barnett in litt. 1999).
This species has presumably declined substantially with the extensive loss of Atlantic forest to agriculture and mining, with current key threats from urbanisation, industrialisation, agricultural expansion, colonisation and associated road-building (Dinerstein et al. 1995, Fearnside 1996).
Conservation Actions Underway
Conservation Actions Proposed
Repeat surveys of known sites in order to monitor population trends and rates of range contraction. Conduct further ecological studies to identify habitat requirements. Protect areas of suitable habitat.
Text account compilers
Gilroy, J., O'Brien, A., Sharpe, C J
BirdLife International (2020) Species factsheet: Euphonia chalybea. Downloaded from http://www.birdlife.org on 26/01/2020. Recommended citation for factsheets for more than one species: BirdLife International (2020) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 26/01/2020.