The darker the color, the more favorable the climate conditions are for survival. The outlined areas represent approximate current range for each season. More on reading these maps.
The Olive Warbler is a fascinating little bird, even if it’s neither olive nor a warbler. It is only found in montane pine forests from Nicaragua to the southwestern U.S., with the large majority of individuals found south of the border. Thus Audubon's climate model can’t tell us much about changes over the majority of its distribution. Within the US, during summer, the species is projected to move north and completely away from its strongholds in far southeastern Arizona.