migration routes

Podraza, K. (2018). As modified from: Z., Grosser. (2017). Open-Source Vector North America Map. medium.com/@zachgrosser/open-source-vector-north-america-...

 

and information used to create the map was from ± Monarch Watch, (2018) Tagging and Migration. Retrieved from monarchwatch.org/tagmig/index.htm

Done