• Summary
• Text account
• Data table and detailed info
• Distribution map
• Reference and further resources

Justification of Red List category
This species has an extremely large range, and hence does not approach the thresholds for Vulnerable under the range size criterion (Extent of Occurrence <20,000 km² combined with a declining or fluctuating range size, habitat extent/quality, or population size and a small number of locations or severe fragmentation). The population trend appears to be increasing, and hence the species does not approach the thresholds for Vulnerable under the population trend criterion (>30% decline over ten years or three generations). The population size is very large, and hence does not approach the thresholds for Vulnerable under the population size criterion (<10,000 mature individuals with a continuing decline estimated to be >10% in ten years or three generations, or with a specified population structure). For these reasons the species is evaluated as Least Concern.

Population justification
The global population is suspected to number 50,000-499,999 mature individuals (Partners in Flight 2019). The species is described as 'uncommon and patchily distributed' (Stotz et al. 1996).

Trend justification
This species is undergoing a large, significant increase (Partners in Flight 2019).

This species occurs in north and east Colombia (in humid Caribbean lowlands west to Córdoba and locally east of the Andes), where it may be expanding its range following deforestation (Stiles et al. 1999), Venezuela (not recorded from the north-west or from most of the llanos region), Guyana, Suriname, French Guiana, Amazonian Brazil (south only to the Amazon), Ecuador and north-east Peru (Loreto to Huánuco); it may persist in small numbers on Trinidad, Trinidad and Tobago (ffrench 1992, Ridgely and Tudor 1989).

The species inhabits freshwater marshes, riparian thickets and second-growth scrub, mostly below 500 m, but has been recorded up to 700 m (Ridgely and Tudor 1989, Stotz et al. 1996).

The principal threat is the depletion of local populations by bird trappers (Ridgely and Tudor 1989, R. Clay in litt. 2010, C. J. Sharpe in litt. 2011), although this is not considered a threat in Colombia (F. G. Stiles in litt. 1999).

Text account compilers
Hermes, C.

Contributors
Butchart, S., Clay, R.P., Ekstrom, J., Fisher, S., Harding, M., Sharpe, C J & Stiles, F.G.

---

Recommended citation
BirdLife International (2024) Species factsheet: Large-billed Seed-finch Sporophila crassirostris. Downloaded from https://datazone.birdlife.org/species/factsheet/large-billed-seed-finch-sporophila-crassirostris on 19/12/2024.
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 19/12/2024.