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.
This western woodpecker ranges widely in mountain forests, especially those with an aspen-conifer mix. Although locally common, Williamson’s Sapsuckers are scarce in large areas of seemingly suitable habitat. In Canada, at the periphery of the range, the species is endangered. Logging is the chief cause of this sapsucker’s precarious situation in Canada. Audubon's climate model results do not bode well for this sapsucker: a 90 percent loss of current winter range and a 99 percent loss of current summer range by 2080. On the breeding grounds in particular, aggressive protection and, in some areas, creative management of mixed hardwood–conifer forests may be increasingly required.