Subset of Project FeederWatch data demonstrating observer shift

<p>This is a subset of data from the Project FeederWatch dataset, <a href="https://feederwatch.org/explore/raw-dataset-requests/">available on the their website</a>. This dataset is restricted to a 15 km radius around Washington, D.C., and includes observations from the most consistent observers. My GitHub repository, titled <a href="https://github.com/GatesDupont/observer_shift">observer_shift</a>, includes R scripts that processes the raw Project FeederWatch dataset and generates this data subset.</p>