Basic maps (visualizations) of raw data and/or results

[trashbirdecology]

**Users have requested that basic visualization functions be provided. **

This issue was submitted as a task for the 2019 Google Code In

We seek help for creating basic visualization functions for depicting general summary statistics for individual species onto spatial maps (e.g. heat maps similar to this example). For example, a spatial map comprising absolute occurrences (e.g., species A is present or not present at a location-binary) or relative abundances (e.g., a relative heatmap of Species A 'abundance).

Further, we wish to provide the opportunity for the user map basic statistics at multiple spatial scales. For example, mapping at the U.S. state level, at the U.S. county level, or at regional levels (e.g., Bird Conservation Regions).

We are open to suggestions of which spatial projections to use, and which source maps for U.S. and Canadian state and county-level maps (e.g., using Ggmap vs. a spatial data package within the bbsAssistant package).

[trashbirdecology]

I recommend we use R package usmaps to generate spatial figures, as they use the US Census boundaries and FIPS .