Relatedly: Anna's Hummingbirds' winter range has changed (likely) because of home feeders and urbanization. [1] http://rspb.royalsocietypublishing.org/content/

Relatedly: Anna's Hummingbirds' winter range has changed (likely) because of home feeders and urbanization. [1] http://rspb.royalsocietypublishing.org/content/royprsb/284/1852/20170256.full.pdf http://rspb.royalsocietypublishing.org/content/royprsb/284/1...