Sierra Leone vs Sudan: Red List Index
Sierra Leone
0.92 index
in 2025
Sudan
0.92 index
in 2025
Sierra Leone rank
61st
Sudan rank
61st
Red List Index over time
- Sierra Leone
- Sudan
How they compare
Sierra Leone currently reports 0.92 index against 0.92 index in Sudan, a difference of 0 index.
Across all 46 years both countries report, Sudan has been ahead every year.
Sierra Leone ranks 61st and Sudan ranks 61st of 247 countries.
Sudan has averaged higher in every one of the 5 decades both report.
Head to head by decade
| Decade | Sierra Leone | Sudan | Difference | Ahead |
|---|---|---|---|---|
| 1980s | 0.93 index | 0.954 index | 0.024 index | Sudan |
| 1990s | 0.928 index | 0.95 index | 0.022 index | Sudan |
| 2000s | 0.92 index | 0.943 index | 0.023 index | Sudan |
| 2010s | 0.92 index | 0.934 index | 0.014 index | Sudan |
| 2020s | 0.92 index | 0.9267 index | 0.0067 index | Sudan |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher red list index, Sierra Leone or Sudan?
- Sierra Leone, at 0.92 index against 0.92 index in Sudan as of 2025.
- What is the difference in red list index between Sierra Leone and Sudan?
- 0 index, with Sierra Leone ahead.
- How many years of comparable data are there for Sierra Leone and Sudan?
- 46 years are reported by both, from 1980 to 2025.
- How do Sierra Leone and Sudan rank globally for red list index?
- Sierra Leone ranks 61st and Sudan ranks 61st of 247 countries.
- Where does this data come from?
- BirdLife International and IUCN – processed by Our World in Data, published as Red List Index. Statizoid refreshes it automatically from the source and publishes the full history for both places.
Individual pages
About this data
Red List Index.