Data Zone
Taxonomic note
Sporophila maximiliani (del Hoyo and Collar 2016) was previously placed in the genus Oryzoborus following SACC (2005 & updates); Sibley & Monroe (1990, 1993); Stotz et al. (1996).
Taxonomic source(s)
del Hoyo, J., Collar, N.J., Christie, D.A., Elliott, A., Fishpool, L.D.C., Boesman, P. and Kirwan, G.M. 2016. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Volume 2: Passerines. Lynx Edicions and BirdLife International, Barcelona, Spain and Cambridge, UK.
SACC. 2005 and updates. A classification of the bird species of South America. Available at: https://www.museum.lsu.edu/~Remsen/SACCBaseline.htm.
| Critically Endangered | Endangered | Vulnerable |
|---|---|---|
| - | C2a(i) | C2a(i) |
| Year | Category | Criteria |
|---|---|---|
| 2017 | Endangered | C2a(i) |
| 2016 | Vulnerable | A2cd+3cd+4cd |
| 2015 | Vulnerable | A2cd+3cd+4cd |
| 2013 | Vulnerable | A2cd+3cd+4cd |
| 2012 | Near Threatened | A2cd+3cd+4cd |
| 2008 | Near Threatened | A2c,d; A3c,d; A4c,d |
| 2004 | Near Threatened | |
| 2000 | Lower Risk/Least Concern | |
| 1994 | Lower Risk/Near Threatened | |
| 1988 | Near Threatened |
| Migratory status | not a migrant | Forest dependency | does not normally occur in forest |
| Land-mass type |
continent |
Average mass | - |
| Estimate | Data quality | |
|---|---|---|
| Extent of Occurrence (breeding/resident) | 7,740,000 km2 | medium |
| Severely fragmented? | no | - |
| Estimate | Data quality | Derivation | Year of estimate | |
|---|---|---|---|---|
| Population size | 1000-2499 mature individuals | poor | suspected | 2017 |
| Population trend | decreasing | poor | suspected | 1998-2008 |
| Generation length | 3.8 years | - | - | - |
| Percentage of mature individuals in largest subpopulation | 1-89% | - | - | - |
Population justification: This species has a very large extent of occurrence, but there are very few recent records from much of its range. The population in Brazil has been estimated to not exceed 250 mature individuals, with no more than 50 in each subpopulation (MMA 2014). The total population is therefore suspected to number less than 2,500 mature individuals, placed here in the band 1000-2499 mature individuals, with less than 250 mature individuals in each subpopulation.
Trend justification: This species is suspected to be experiencing a rapid population decline as it has become rare in many parts of its range and is known to suffer high levels of persecution for the cage-bird trade, as well as habitat loss and degradation.
| Country/Territory | Presence | Origin | Resident | Breeding visitor | Non-breeding visitor | Passage migrant |
|---|---|---|---|---|---|---|
| Bolivia | extant | native | yes | |||
| Brazil | extant | native | yes | |||
| French Guiana | extant | native | yes | |||
| Guyana | extant | native | yes | |||
| Suriname | extant | native | yes | |||
| Venezuela | extant | native | yes |
| Country/Territory | IBA Name |
|---|---|
| Brazil | Parque Nacional das Emas |
| Brazil | Savanas do Alto Paru |
| Colombia | Reserva Natural El Pangán |
| Colombia | Reserva Natural Río Ñambí |
| Habitat (level 1) | Habitat (level 2) | Importance | Occurrence |
|---|---|---|---|
| Artificial/Terrestrial | Pastureland | suitable | resident |
| Artificial/Terrestrial | Subtropical/Tropical Heavily Degraded Former Forest | suitable | resident |
| Grassland | Subtropical/Tropical Seasonally Wet/Flooded | suitable | resident |
| Shrubland | Subtropical/Tropical Moist | major | resident |
| Wetlands (inland) | Bogs, Marshes, Swamps, Fens, Peatlands | major | resident |
| Wetlands (inland) | Permanent Freshwater Lakes (over 8ha) | suitable | resident |
| Wetlands (inland) | Permanent Rivers/Streams/Creeks (includes waterfalls) | suitable | resident |
| Altitude | 0 - 1100 m | Occasional altitudinal limits |
| Threat (level 1) | Threat (level 2) | Impact and Stresses | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Agriculture & aquaculture | Annual & perennial non-timber crops - Agro-industry farming | Timing | Scope | Severity | Impact | ||||
| Ongoing | Majority (50-90%) | Slow, Significant Declines | Medium Impact: 6 | ||||||
|
|||||||||
| Agriculture & aquaculture | Wood & pulp plantations - Agro-industry plantations | Timing | Scope | Severity | Impact | ||||
| Ongoing | Majority (50-90%) | Slow, Significant Declines | Medium Impact: 6 | ||||||
|
|||||||||
| Biological resource use | Hunting & trapping terrestrial animals - Intentional use (species is the target) | Timing | Scope | Severity | Impact | ||||
| Ongoing | Majority (50-90%) | Rapid Declines | Medium Impact: 7 | ||||||
|
|||||||||
| Purpose | Scale |
|---|---|
| Pets/display animals, horticulture | subsistence, national |
Recommended citation
BirdLife International (2024) Species factsheet: Great-billed Seed-finch Sporophila maximiliani. Downloaded from
https://datazone.birdlife.org/species/factsheet/great-billed-seed-finch-sporophila-maximiliani on 20/12/2024.
Recommended citation for factsheets for more than one species: BirdLife International (2024) IUCN Red List for birds. Downloaded from
https://datazone.birdlife.org/species/search on 20/12/2024.