Estimates of relative abundance for every week of the year animated to show movement patterns. Relative abundance is the estimated number of individuals detected by an eBirder during a traveling count at the optimal time of day for each species.
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eBird data from 2005-2020. Estimated for 2019.
Fink, D., T. Auer, A. Johnston, M. Strimas-Mackey, O. Robinson, S. Ligocki, W. Hochachka, C. Wood, I. Davies, M. Iliff, L. Seitz. 2020. eBird Status and Trends, Data Version: 2019; Released: 2020. Cornell Lab of Ornithology, Ithaca, New York. https://doi.org/10.2173/ebirdst.2019