Maps of bird diversity include the total species richness (using breeding, non-breeding, and combined ranges), major taxonomic groups (non-Passeriformes, Passeriformes), parrots, hummingbirds, threatened species, data deficient species, and small-ranged species. Species considered small-ranged are those with a geographic range size smaller than the global median (i.e., the 50% of species with the smallest ranges). Maps were derived from version 7 of the digital range maps for the world’s birds from BirdLife International (2018).
All maps were generated at a spatial resolution of 10×10 km and use the Eckert IV equal-area projection. Maps represent native, extant species only. Tables of the bird species included are available for download here.
A zip file with higher resolution jpegs of the above maps can be downloaded here.
Earlier versions of the bird maps appeared in the publications listed below, which should be cited when using the data.
Jenkins, CN, SL Pimm, LN Joppa (2013) Global Patterns of Terrestrial Vertebrate Diversity and Conservation. PNAS 110(28): E2602-E2610. doi: 10.1073/pnas.1302251110 (PDF)
Pimm, SL, CN Jenkins, R Abell, TM Brooks, JL Gittleman, LN Joppa, PH Raven, CM Roberts, JO Sexton (2014) The biodiversity of species and their rates of extinction, distribution, and protection. Science 344(6187): 1246752
Thanks to Natalia Ocampo-Peñuela for the photo of the Purplish-mantled Tanager (Iridosornis porphyrocephala).