Exploring eBird Mobile Tracks
10,000 Birds
FEBRUARY 8, 2022
I recently birded the Tualatin River NWR near Portland, Oregon, and made that my test case for a deeper dive into the Mobile Track. The image below shows Tualatin River NWR (the blue and white dot in the lower left corner) relative to the Portland Metropolitan Area , which has a population of approximately 2.5
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