Compiling these extensive datasets was a major undertaking, and we are very thankful to the many domain experts who helped to collect and manually annotate the data for this competition. Specifically, we would like to thank (institutions and individual contributors in alphabetic order):

###[Center for Avian Population Studies at the Cornell Lab of Ornithology](https://www.birds.cornell.edu/home/center-for-avian-population-studies/)
**José Castaño, Fernando Cediel, Jean-Yves Duriaux, Viviana Ruiz-Gutiérrez, Álvaro Vega-Hidalgo, Ingrid Molina, and Alejandro Quesada**

<img title = "Center for Conservation Bioacoustics" src="https://i0.wp.com/www.charliedoggett.net/wp-content/uploads/2019/06/Cornell-Lab-Logo.jpg?w=1550&ssl=1" style="width: 300px">

###[Center for Conservation Bioacoustics at the Cornell Lab of Ornithology](https://bioacoustics.cornell.edu)
**Russ Charif, Stefan Kahl, Holger Klinck, Rob Koch, Jim Lowe, Ashik Rahaman, Yu Shiu, and Laurel Symes**

<img title = "Center for Conservation Bioacoustics" src="https://www.googleapis.com/download/storage/v1/b/kaggle-user-content/o/inbox%2F1095143%2F19ad76f0aa119750f14ac7dc07892967%2FCCB-Logo.png?generation=1590703184610515&alt=media" style="width: 250px">

###[Google Bioacoustics Group](https://research.google/)
**Julie Cattiau and Tom Denton**

<img title = "Google Research" src="https://research.google/static/images/share-9cd7266ef5001b20f98e01062c26189fa69ed6c784df04caf809668887fd339a.png" style="width: 250px">

###[LifeCLEF](https://www.imageclef.org/LifeCLEF2021)
**Alexis Joly and Henning Müller**

<img title = "LifeCLEF" src= "https://storage.googleapis.com/kaggle-media/competitions/Birdsong/Lifeclef.logo.jpg" style="width: 250px">

###[Macaulay Library at the Cornell Lab of Ornithology](https://www.macaulaylibrary.org/)
**Jessie Barry, Sarah Dzielski, Cullen Hanks, Jay McGowan, and Matt Young**

<img title = "Macaulay Library" src="https://ml-rds-wordpress-prod-s3.s3.amazonaws.com/uploads/2017/10/ml_logo.png" style="width: 250px">

###[Nespresso AAA Sustainable Quality Program](https://www.nespresso.com/pro/at/en/our-choices/sustainable-quality/connected-coffee-farms)

<img title = "Nespresso" src="https://cdn.worldvectorlogo.com/logos/nespresso-3.svg" style="width: 125px">

###[Peery Lab at the University of Wisconsin, Madison](https://peery.russell.wisc.edu/)
**Phil Chaon, Michaela Gustafson, M. Zach Peery, and Connor Wood**

<img title = "University of Wisconsin" src="https://logonoid.com/images/university-of-wisconsin-madison-logo.png" style="width: 250px">

###[Xeno-canto](http://www.imageclef.org/system/files/LogoXenoCanto.png)
**Willem-Pier Vellinga**

<img title = "Xeno-Canto" src="https://storage.googleapis.com/kaggle-media/competitions/Birdsong/xeno-canto.jpg" style="width: 250px">

###Photo Credits
Blue Jay © Jay McGowan / Macaulay Library at the Cornell Lab of Ornithology (ML69240641) 

Baltimore Oriole © Jay McGowan / Macaulay Library at the Cornell Lab of Ornithology (ML194192481)