Irby Lovette

Director, Fuller Evolutionary Biology Program and Director, Center for Biodiversity Studies and Higher Education

I study the incredible diversity of the world’s birds and work with many different kinds of students through my roles as the Fuller Professor of Ornithology, and the Director of the Fuller Evolutionary Biology Program, the Cornell Museum of Vertebrates, and the Cornell Lab’s Academic Affairs.

I have a hard time deciding what I find most exciting about my profession: making new discoveries about the ways birds have evolved such a wonderful richness of appearances, lifestyles and behaviors; or helping to create opportunities for our inspiring cadres of undergraduates, graduate students, and postdocs, many of whom came to Cornell specifically to study ornithology. Fortunately, in my world these two activities often occur together, since many of our most innovative scientific advances are made by those same student and postdoc researchers! Currently in my area of science I’m particularly impressed by our newfound ability to dissect the genetic basis of bird traits and evolutionary history using cutting-edge comparisons of birds’ entire genomes—I feel like these new big-data tools are giving us a truly novel window on how biodiversity arises, as if we just fired up the equivalent of the “Hubble Telescope” for evolutionary biology.

Recent Publications

2804417 Lovette 1 the-auk 10 date desc title 2488 https://www.birds.cornell.edu/home/wp-content/plugins/zotpress/
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Robinson, B. W., S. Kurtis, B. G. Butcher, S. V. Edwards, I. J. Lovette, and J. Walsh (2025). The genomic basis of plumage polymorphism in the Eastern Screech-Owl ( Megascops asio ). Evolution 79:1885–1899.
Rao, M. T., B. G. Butcher, B. W. Robinson, I. J. Lovette, and J. Walsh (2025). Genomic data reveals mixed support for the current subspecies designations in the Megascops asio (Eastern Screech-Owl). Ornithology:ukaf047.
Céspedes Arias, L. N., A. M. Cuervo, C. D. Cadena, E. Bonaccorso, C. Witt, I. Lovette, and L. Campagna (2025). History of divergence and gene flow shaping geographic variation in Andean warblers ( Myioborus ). [Online.] Available at
Arias, L. C., K. F. P. Bennett, L. Campagna, A. W. Wood, E. Bonaccorso, A. M. Cuervo, C. D. Cadena, I. J. Lovette, and D. P. L. Toews (2025). Diversification and divergence in Myioborus warblers: insights into evolutionary relationships and plumage genetics. [Online.] Available at
Hooper, D. M., K. A. Lopez, B. G. Butcher, I. J. Lovette, and S. C. Griffith (2025). Recent divergence and microgeographic genetic structure in an endangered Australian songbird: the southern Black‐Throated Finch. Ecology and Evolution 15:e72313.
Robinson, B. W., I. J. Lovette, and J. Walsh (2024). Plumage polymorphism in raptors. Ornithology:ukae026.
Carbeck, K., P. Arcese, I. Lovette, C. Pruett, K. Winker, and J. Walsh (2023). Candidate genes under selection in song sparrows co-vary with climate and body mass in support of Bergmann's Rule. Nature Communications 14:6974.
García, N. C., L. Campagna, A. C. Rush, R. C. K. Bowie, and I. J. Lovette (2023). Comparative genomics of two Empidonax flycatchers reveal candidate genes for bird song production. Evolution 77:1818–1828.
Walsh, J., S. M. Billerman, B. G. Butcher, V. G. Rohwer, D. P. L. Toews, V. Vila-Coury, and I. J. Lovette (2023). A complex genomic architecture underlies reproductive isolation in a North American oriole hybrid zone. Communications Biology 6:154.
Mikles, C. S., P. Arcese, I. J. Lovette, S. M. Aguillon, Y. L. Chan, P. M. Benham, K. Carbeck, and J. Walsh (2023). Evolutionary divergence and adaptive capacity in morphologically distinct song sparrow subspecies. Conservation Genetics 24:921–932.
Irby Lovette
Center Biodiversity Studies & Higher Education
Work607-254-2140
Email ijl2@cornell.edu

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Golden-cheeked Warbler by Bryan Calk/Macaulay Library