It began with an osprey named Julie, who in 2015 migrated from the Detroit River in Michigan all the way to Maracaibo, Venezuela, stopping at wetlands and wildlife refuges along the way. Julie wore a GPS tracker. John Nelson took Julie’s data and created a series of maps of her journey that represent a brilliant use of negative space: aerial and satellite imagery is shown only along the paths she took; everything else is blanked out. It’s a linear map of a bird’s entire world. The Story Map goes into more detail; the accompanying text is frankly beautifully written. John explains how he made the maps here.
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