The phylogeny is available to download as either archives of complete trees (below) or by subsetting to a user provided set of species using the tool on the right.
There are four choices of class-wide tree distribution to choose from, each containing 10K trees, stored as zip archives of 1K trees each. Full details of each tree distribution are available in the supplementary material.
Full trees (9993 species), Hackett backbone
Full trees (9993 species), Ericson backone
Genetic data only trees (6670 species), Hackett backbone
Genetic data only trees (6670 species), Ericson backone
Alternatively, distributions for individual clades or backbone trees can be downloaded by following these links:
Any use of full or partial (subset) tree data in research work requires the following citation:
Jetz, W., G. H. Thomas, J. B. Joy, K. Hartmann, and A. O. Mooers. 2012. The global diversity of birds in space and time. Nature 491:444-448
For any additional use of the birdtree web tool, please cite “birdtree.org”