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Mass Audubon State of the Birds

Find Bird Groups

Canada Warbler
Wilsonia canadensis

The handsome Canada Warbler is a ground-nesting denizen of wooded swamps and moist upland thickets that is currently undergoing an alarming decline, not only in Massachusetts, but throughout its breeding range. It is restricted to areas of suitable moist, shady habitat.
Conservation Status
Conservation Action Urgent

Tracking This Bird In Massachusetts

Climate Vulnerability Score

Highly Vulnerable
Mass Audubon Mean likelihood of occurrence (current)
0.53
Mass Audubon Mean likelihood of occurrence (2050)
0.13
Mass Audubon Absolute change in likelihood of occurrence
-0.39
U.S. Forest Service Climate Change Bird Atlas (Hadly Hi emissions scenario)a
-3.90
National Audubon Societyb
Climate Threatened
a USFS model data for Massachusetts by 2100
b National Audubon Society's Climate Change Atlas was completed on a continental scale.

Breeding Bird Atlas

Atlas I Blocks
281
Atlas II Blocks
189
Percent of state occupied - Atlas I
29
Percent of state occupied - Atlas II
18
Percent change
56

Breeding Bird Survey

Annual trend 1966-2010
-5%
P-value
significant, declining
Number of routes
13
Recent trend 2000-2010
-6%

Christmas Bird Count

Trend (1963-2008)
0
Significantly different than zero
Trend (1963-1979)
0
Significantly different than zero
Trend (1979-2008)
0
Significantly different than zero

Habitat Usage

Breeding

Forest, Forested Wetland

Wintering

Does not winter in Massachusetts

Climate Suitability Current and 2050