We are grateful to the National Audubon Society and the Environmental Systems Research Institute for access to ArcGIS Online, used in the production of our WRS map products.
We are also grateful to our volunteers who have planned and coordinated this project, observed and recorded raptor populations for over a decade, and created the map visualizations.
Archive Winter 2019
Archive Winter 2018
Archive Winter 2017
Archive Winter 2016
Archive Winter 2015