Vol. 45, No. 6
Margo Servison and Joan Walsh
56% of the coastal-nesting birds analyzed and 70% of the salt marsh-nesting birds analyzed, including the Saltmarsh Sparrow, are highly vulnerable to climate change. Photograph by Shawn Carey (Migration Productions).
In the summer of 2017, Mass Audubon completed State of the Birds 2017: Massachusetts Birds and Our Changing Climate. This third edition of the State of the Birds reports builds on the previous 2011 and 2013 editions, in which we compared the present to the past, using the results of our Breeding Bird Atlas 1 data (collected in 1974–1979) and Breeding Bird Atlas 2 data (collected in 2007–2011). In those reports we evaluated identifiable changes in Massachusetts bird populations and used those changes to set priorities for our work.