Click Load Data to fetch the full BIRDS_BASE_DATA table and browse every field for every species. Scroll the table horizontally to see all columns and vertically through every species. Click Legend to look up what each column code and abbreviation means.
Click a column header to sort by that field (click again to reverse). Hover a species' common name for a quick photo, or click it to open the full species profile. Click anywhere else in a row to highlight it, which helps keep your place while scrolling horizontally.
The species data on this page comes from BIRDBASE, a peer-reviewed global dataset of avian biogeography, conservation, ecology, and life-history traits — 78 traits for 11,589 species across 254 families, synthesized from 367 published sources spanning 1957–2025.
Şekercioğlu, Ç.H., Kittelberger, K.D., Mota, F.M.M. et al. BIRDBASE: A Global Dataset of Avian Biogeography, Conservation, Ecology and Life History Traits. Scientific Data (2025).
This page is a downstream retelling of that dataset, not a replacement for the source — see the full paper on nature.com for methodology, sources, and citation details.
Species with a global range size <50,000 km² receive a value of 1.
If a species is found in two or more realms, realm is a combination (e.g. LN = Neotropical + Nearctic).
Latitudinal range based on tropics and polar circles.
Habitats are numbered in order of preference.
Infrequent feeding (described as "rarely" or a few times) = T (trace). "Occasionally" consumed = weight of 1. "Also" consumed = weight of 2.
0 = behavior not described for the species.
The substrate refers to what the nest is placed on or in.
0 = no known parasitism. Note: intra-specific parasitism receives a 1 in both columns.
1 = species undertakes that type of movement.