RT Journal Article SR Electronic T1 BirdFlow: Learning Seasonal Bird Movements from Citizen Science Data JF bioRxiv FD Cold Spring Harbor Laboratory SP 2022.04.12.488057 DO 10.1101/2022.04.12.488057 A1 Miguel Fuentes A1 Benjamin M. Van Doren A1 Daniel Fink A1 Daniel Sheldon YR 2022 UL http://biorxiv.org/content/early/2022/04/13/2022.04.12.488057.abstract AB Large-scale monitoring of seasonal animal movement is integral to science, conservation, and outreach. However, gathering representative movement data across entire species ranges is frequently intractable. Citizen science databases collect millions of animal observations throughout the year, but it is challenging to infer individual movement behavior solely from observational data. We present BirdFlow, a probabilistic modeling framework that draws on citizen science data from the eBird database to model the population flows of migratory birds. We apply the model to 11 species of North American birds, using GPS and satellite tracking data to tune and evaluate model performance. We show that BirdFlow models can accurately infer individual seasonal movement behavior directly from eBird relative abundance estimates. Supplementing the model with a sample of tracking data from wild birds improves performance. Researchers can extract a number of behavioral inferences from model results, including migration routes, timing, connectivty, and forecasts. The BirdFlow framework has the potential to advance migration ecology research, boost insights gained from direct tracking studies, and serve a number of applied functions in conservation, disease surveillance, aviation, and public outreach.Competing Interest StatementThe authors have declared no competing interest.