Top 100 Countries by Bird Species Diversity, 2025
Bird Species Diversity by Country and Territory: What the Ranking Measures
Bird species diversity in this ranking means the number of distinct bird species recorded for each country or territory in a harmonised checklist. The measure includes regularly occurring resident and migrant species according to the source checklist rules; it is not a count of individual birds or population size.
Birds are a useful biodiversity signal because they are widely observed, taxonomically documented, and sensitive to habitat change. A high species count usually reflects a combination of tropical latitude, large habitat variety, intact wetlands or forests, migration routes, and strong elevation gradients. This is why countries with Amazonian forests, Andean slopes, island archipelagos, tropical wetlands, and major flyways dominate the upper part of the ranking.
Taxonomy note: species counts are checklist-based. Numbers may differ between BioDB, BirdLife, Avibase, eBird/Clements, IOC, and national committees because taxonomies change, species are split or lumped, and vagrant records are handled differently. The ranking is strongest as a comparative country snapshot, not as a final taxonomic verdict.
Methodology
The ranking uses the BioDB “Birds Per Country” table as the structured country-level source. BioDB states that its data are collected from BirdLife and dated April 2024. This edition uses that April 2024 dataset because global biodiversity tables are revised after taxonomy, distribution records, and national checklists are reviewed.
Countries and territories are ordered by the “Species” column from highest to lowest. Tied ranks are preserved where the source table assigns the same rank to countries with identical species counts. For readability, species counts use thousands separators. The Top 100 table also includes threatened and endemic species counts from the same source table. The share display is calculated as each country’s species count divided by the sum of the 100 displayed country entries, not by the total number of bird species on Earth.
Limitations are material. Country area, survey intensity, political boundaries, accepted taxonomy, and the treatment of seasonal migrants or accidental records all affect the final count. A country can rank high because it is ecologically rich, because it is large, because it lies on a flyway, or because its avifauna is especially well documented. Conservation conclusions should therefore combine species richness with endemism, threatened species, habitat loss, protected-area coverage, and population trends.
Table 1. Top 10 countries by bird species count
| Rank | Country / territory | Bird species count | Threatened / endemic |
|---|---|---|---|
| 1 | Colombia | 1,871 | 86 / 95 |
| 2 | Peru | 1,861 | 82 / 139 |
| 3 | Brazil | 1,816 | 145 / 258 |
| 4 | Indonesia | 1,746 | 156 / 528 |
| 5 | Ecuador | 1,624 | 78 / 44 |
| 6 | Bolivia | 1,437 | 45 / 17 |
| 7 | Venezuela | 1,387 | 36 / 53 |
| 8 | China | 1,288 | 94 / 66 |
| 9 | India | 1,211 | 89 / 75 |
| 10 | DR Congo | 1,110 | 42 / 15 |
Top-ranking pattern: northwestern South America is the global centre of country-level bird richness. Colombia, Peru, Brazil, Ecuador, Bolivia, and Venezuela combine Amazonian lowlands, Andean elevation bands, dry valleys, wetlands, and coastlines. Indonesia ranks alongside them because island biogeography adds exceptional turnover and endemism.
Chart 1. Highest-ranking countries by bird species count
Key pattern: the leading group is concentrated in tropical South America and Southeast Asia. Colombia, Peru, Brazil, Indonesia, and Ecuador are the five highest-count countries in this dataset.
The chart uses the same values as the embedded tables and highlights how sharply the first-ranked countries separate from the rest of the leading group.
Full Top 100 Countries and Territories by Bird Species Count
Use the controls to search entries, compare regions, sort by species richness or conservation indicators, and switch between species counts and each entry’s share of the displayed Top 100 total.
Top 100 species-count total used for the share view: 70,803. Shares are calculated within this displayed Top 100 set.
| Rank | Country / territory | Species count | Threatened / endemic |
|---|---|---|---|
| 1 | Colombia | 1,871 | 86 / 95 |
| 2 | Peru | 1,861 | 82 / 139 |
| 3 | Brazil | 1,816 | 145 / 258 |
| 4 | Indonesia | 1,746 | 156 / 528 |
| 5 | Ecuador | 1,624 | 78 / 44 |
| 6 | Bolivia | 1,437 | 45 / 17 |
| 7 | Venezuela | 1,387 | 36 / 53 |
| 8 | China | 1,288 | 94 / 66 |
| 9 | India | 1,211 | 89 / 75 |
| 10 | DR Congo | 1,110 | 42 / 15 |
| 11 | Mexico | 1,094 | 68 / 127 |
| 12 | Tanzania | 1,075 | 47 / 33 |
| 13 | Kenya | 1,058 | 46 / 10 |
| 14 | Myanmar | 1,038 | 57 / 10 |
| 15 | Argentina | 1,002 | 56 / 15 |
| 16 | Uganda | 1,000 | 33 / 1 |
| 17 | Thailand | 939 | 70 / 2 |
| 18 | Angola | 921 | 33 / 16 |
| 19 | Sudan | 912 | 27 / 0 |
| 20 | Cameroon | 889 | 31 / 7 |
| 20 | Panama | 889 | 17 / 11 |
| 22 | Nigeria | 866 | 25 / 4 |
| 23 | Costa Rica | 843 | 24 / 10 |
| 24 | Vietnam | 831 | 51 / 10 |
| 25 | Ethiopia | 821 | 36 / 18 |
| 26 | Nepal | 820 | 36 / 1 |
| 26 | United States | 820 | 83 / 71 |
| 28 | South Sudan | 806 | 23 / 0 |
| 29 | Guyana | 792 | 9 / 1 |
| 30 | South Africa | 762 | 54 / 18 |
| 31 | Papua New Guinea | 741 | 33 / 112 |
| 32 | Zambia | 734 | 22 / 3 |
| 33 | Australia | 726 | 67 / 354 |
| 33 | Malaysia | 726 | 68 / 9 |
| 35 | Central African Republic | 721 | 18 / 0 |
| 36 | Honduras | 708 | 17 / 1 |
| 37 | Guatemala | 699 | 18 / 1 |
| 38 | Laos | 697 | 28 / 1 |
| 39 | Suriname | 695 | 4 / 1 |
| 40 | Paraguay | 689 | 28 / 1 |
| 41 | Nicaragua | 685 | 18 / 0 |
| 42 | Ghana | 681 | 25 / 0 |
| 43 | Mozambique | 676 | 32 / 2 |
| 44 | Ivory Coast | 672 | 26 / 0 |
| 45 | Russia | 663 | 58 / 4 |
| 46 | Rwanda | 636 | 23 / 1 |
| 47 | Guinea | 635 | 22 / 0 |
| 48 | Malawi | 633 | 20 / 1 |
| 49 | Zimbabwe | 629 | 23 / 0 |
| 50 | Bhutan | 620 | 19 / 0 |
| 51 | Congo | 614 | 7 / 0 |
| 52 | Pakistan | 611 | 31 / 0 |
| 53 | Gabon | 604 | 6 / 1 |
| 54 | Bangladesh | 603 | 36 / 1 |
| 55 | Namibia | 599 | 34 / 1 |
| 56 | Burundi | 596 | 20 / 1 |
| 57 | Philippines | 595 | 91 / 259 |
| 58 | Sierra Leone | 583 | 17 / 0 |
| 59 | Togo | 572 | 16 / 0 |
| 60 | Somalia | 570 | 20 / 8 |
| 61 | Mali | 567 | 19 / 0 |
| 62 | Senegal | 560 | 23 / 2 |
| 63 | Benin | 551 | 14 / 0 |
| 64 | Eritrea | 544 | 22 / 0 |
| 65 | Botswana | 537 | 19 / 0 |
| 66 | Liberia | 536 | 11 / 0 |
| 67 | Belize | 530 | 7 / 0 |
| 68 | Chad | 526 | 19 / 0 |
| 69 | Cambodia | 516 | 31 / 2 |
| 70 | Canada | 495 | 22 / 3 |
| 71 | El Salvador | 489 | 9 / 0 |
| 72 | Eswatini | 486 | 17 / 0 |
| 73 | Iran | 473 | 28 / 1 |
| 74 | Mauritania | 472 | 24 / 0 |
| 75 | Gambia | 462 | 19 / 0 |
| 76 | Burkina Faso | 453 | 15 / 0 |
| 76 | Guinea-Bissau | 453 | 15 / 0 |
| 78 | Japan | 441 | 50 / 21 |
| 79 | Niger | 439 | 17 / 0 |
| 80 | Kazakhstan | 438 | 26 / 0 |
| 81 | Equatorial Guinea | 434 | 4 / 4 |
| 82 | Chile | 429 | 36 / 14 |
| 83 | Brunei | 415 | 41 / 0 |
| 84 | Uruguay | 408 | 22 / 1 |
| 85 | Trinidad and Tobago | 395 | 4 / 3 |
| 86 | Afghanistan | 393 | 15 / 1 |
| 86 | Turkey | 393 | 21 / 0 |
| 88 | Saudi Arabia | 392 | 19 / 1 |
| 89 | Israel | 385 | 18 / 0 |
| 90 | Spain | 379 | 23 / 8 |
| 91 | Egypt | 377 | 16 / 0 |
| 92 | Sri Lanka | 376 | 13 / 30 |
| 93 | Taiwan | 375 | 25 / 27 |
| 94 | Iraq | 374 | 17 / 0 |
| 95 | Singapore | 369 | 23 / 0 |
| 96 | Turkmenistan | 366 | 18 / 0 |
| 97 | Mongolia | 363 | 24 / 0 |
| 98 | France | 359 | 19 / 1 |
| 99 | South Korea | 357 | 35 / 0 |
| 100 | Uzbekistan | 354 | 19 / 0 |
Source: BioDB “Birds Per Country”, compiled from BirdLife data, April 2024. Rank numbers preserve ties; the table contains 100 entries.
Scatter chart. Species richness vs absolute latitude
The scatter chart is an explanatory visual, not a ranking formula. It uses approximate absolute latitudes for selected countries to show the broad tropical richness gradient. Habitat variety, mountain systems, wetlands, coastlines, islands, and flyways explain why countries at similar latitudes can have very different totals.
Key pattern: tropical countries such as Colombia, Peru, Brazil, Indonesia, Ecuador, DR Congo, Kenya, and Uganda sit high in the richness distribution. Higher-latitude countries can still rank strongly when they are large, well surveyed, or lie on major flyways.
Read the scatter chart together with the country table: latitude helps explain the pattern, but habitat variety and survey coverage also matter.
What the Bird Diversity Ranking Means
The ranking shows that bird richness is not randomly distributed. The top countries cluster around tropical South America, tropical Africa, South and Southeast Asia, and biodiverse island systems. These places combine warm climates, strong habitat gradients, forest and wetland mosaics, or island-driven species turnover.
The middle of the Top 100 is dominated by entries that are either large, ecologically varied, or positioned on migration routes. Many African countries appear because savannah, wetland, forest, and semi-arid habitats intersect. Several Asian countries rank high because mountain systems and monsoon climates support rapid species turnover. Countries such as Australia, Papua New Guinea, the Philippines, Sri Lanka, Taiwan, and Indonesia show why endemism matters: island systems may have fewer total species than continental giants, but a much larger share of species can be unique.
Policy takeaways
- Protect habitat gradients. Bird richness often concentrates where elevation, rainfall, forest type, and wetlands change quickly. Conservation planning should connect habitats rather than protect isolated fragments only.
- Treat flyways as networks. Migratory species depend on linked wetlands, coasts, stopover sites, and wintering grounds. A single degraded node can weaken bird diversity across several countries.
- Separate richness from uniqueness. A country with fewer species can still hold irreplaceable endemic birds. Island and mountain systems need special attention because local extinctions can become global extinctions.
- Use monitoring as infrastructure. National bird atlases, citizen-science records, standardised checklists, and protected-area reporting improve the quality of biodiversity decisions.
What this means for the reader
For travellers and birdwatchers, a high national total signals opportunity but not necessarily the easiest trip. Access, safety, seasonality, local guides, habitat concentration, and protected-area infrastructure matter more than the national number alone. Ecuador or Costa Rica can deliver exceptional birding density in compact areas, while Brazil or Indonesia require more targeted route planning because diversity is spread across vast or fragmented regions.
For conservation readers, the ranking helps distinguish three different questions: where many species occur, where unique species occur, and where many species are at risk. The best conservation priorities usually appear where those three dimensions overlap. For students and general readers, the ranking is a practical way to understand why geography, climate, migration, and land use shape biodiversity outcomes.
FAQ
Why does Colombia rank first?
Colombia combines Amazonian forests, Andean mountain ranges, Pacific and Caribbean coasts, wetlands, dry valleys, and strong elevation turnover. That mix creates many ecological niches in a relatively compact national space.
Does a high species count mean bird populations are healthy?
No. Species richness counts how many species are recorded, not whether populations are stable. A country can be extremely species-rich while also having many threatened species due to deforestation, wetland loss, hunting, invasive species, or climate pressure.
Why do different sources give different bird counts?
Bird counts depend on taxonomy, checklist rules, accepted records, and treatment of migrants or vagrants. When a species is split into two species, a country count may rise; when records are rejected or taxonomy is revised, a count may change.
Are endemic species more important than total species?
They answer a different question. Total species count measures richness, while endemic species measure irreplaceability. Losing an endemic bird means losing a species from the planet, not just from one country.
Why are island countries important even when their totals are lower?
Islands often have high endemism because species evolve in isolation. Their total count may be lower than a large continental country, but the conservation stakes can be higher because unique species have nowhere else to go.
Can bird species richness guide eco-tourism planning?
Yes, but it should be combined with access, seasonality, habitat mix, local expertise, and conservation rules. A country’s total is useful for broad comparison; route-level planning depends on where species actually occur.
Sources and technical references
- BioDB — Birds Per Country. Structured table used for country species counts, threatened counts, endemic counts, and the April 2024 source snapshot. https://biodb.com/table/birds-per-country/
- BirdLife Data Zone. Authoritative reference for global bird distribution, country profiles, conservation context, and BirdLife’s data framework. https://datazone.birdlife.org/
- BirdLife International dataset information. Background on datasets, range maps, taxonomy context, and species distribution data. https://datazone.birdlife.org/dataset-information
- IUCN Red List. Conservation-status reference used for threatened species categories and species risk interpretation. https://www.iucnredlist.org/
- Avibase. Independent global bird checklist system useful for comparing country lists across taxonomies and understanding why counts may differ. https://avibase.bsc-eoc.org/
When comparing this ranking with another checklist, check the dataset date, taxonomy version, country-boundary treatment, and rules for resident, migrant, introduced, and vagrant species.
