Bird Species Diversity (Top 100 Countries) — 2025 edition — Assets

FILES
1) table_top10_bird_species_count_2025.csv
   Columns: Rank, Country, Species

2) table_top20_bird_species_count_2025.csv
   Columns: Rank, Country, Species

3) table_top100_birds_country_2025.csv
   Columns: Rank, Country, Species, Threatened, Endemic

4) tables_bird_species_diversity_top100_2025.xlsx
   Sheets: Top10, Top20, Top100

5) chart_bar_top20_bird_species_2025.png
   Bar chart using the Top 20 species counts.

6) chart_scatter_species_vs_abs_latitude_2025.png
   Scatter chart for an illustrative subset; latitude values are approximate proxies (for explaining the broad latitudinal gradient).

7) scatter_data_species_vs_abs_latitude_subset.csv / .json
   The data used for the scatter figure.

DATA NOTES
- Country-level bird species counts (plus threatened/endemic counts) are taken from the BioDB “Birds Per Country” table,
  which indicates compilation from BirdLife data (snapshot referenced on that page).
- The Top 100 in these files is the first 100 country entries as sorted on the BioDB table.
