Schulenberg T.S.; M. J. Iliff; S. M. Billerman; B. L. Sullivan; C. L. Wood; T. A. Fredericks. (august 2019), eBird/Clements Checklist v2019(CSV), Cornell Lab of Ornithology, henta 19. september 2019
doi.org
dx.doi.org
Claramunt, S.; Cracraft, J. (2015). «A new time tree reveals Earth history's imprint on the evolution of modern birds». Sci Adv1 (11): e1501005. doi:10.1126/sciadv.1501005.
Prum, Richard O.; Berv, Jacob S.; Dornburg, Alex; Field, Daniel J.; Townsend, Jeffrey P.; Lemmon, Emily Moriarty; Lemmon, Alan R. (2015). «A comprehensive phylogeny of birds (Aves) using targeted next-generation DNA sequencing». Nature526 (7574): 569–573. ISSN0028-0836. PMID26444237. doi:10.1038/nature15697.
Kimball, R.T.; et al. (2013). «Identifying localized biases in large datasets: A case study using the Avian Tree of Life». Mol Phylogenet Evol69: 1021–1032. doi:10.1016/j.ympev.2013.05.029.
Prum, Richard O.; Berv, Jacob S.; Dornburg, Alex; Field, Daniel J.; Townsend, Jeffrey P.; Lemmon, Emily Moriarty; Lemmon, Alan R. (2015). «A comprehensive phylogeny of birds (Aves) using targeted next-generation DNA sequencing». Nature526 (7574): 569–573. ISSN0028-0836. PMID26444237. doi:10.1038/nature15697.
worldcat.org
Prum, Richard O.; Berv, Jacob S.; Dornburg, Alex; Field, Daniel J.; Townsend, Jeffrey P.; Lemmon, Emily Moriarty; Lemmon, Alan R. (2015). «A comprehensive phylogeny of birds (Aves) using targeted next-generation DNA sequencing». Nature526 (7574): 569–573. ISSN0028-0836. PMID26444237. doi:10.1038/nature15697.